{"id":"https://openalex.org/W3036603839","doi":"https://doi.org/10.1055/s-0040-1709982","title":"Redefining Second Stage of Labor: Number of Pushing Contractions","display_name":"Redefining Second Stage of Labor: Number of Pushing Contractions","publication_year":2020,"publication_date":"2020-04-01","ids":{"openalex":"https://openalex.org/W3036603839","doi":"https://doi.org/10.1055/s-0040-1709982","mag":"3036603839","pmid":"https://pubmed.ncbi.nlm.nih.gov/32577321","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/7305017"},"language":"en","primary_location":{"id":"doi:10.1055/s-0040-1709982","doi":"https://doi.org/10.1055/s-0040-1709982","is_oa":true,"landing_page_url":"https://doi.org/10.1055/s-0040-1709982","pdf_url":"http://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-0040-1709982.pdf","source":{"id":"https://openalex.org/S2739049016","display_name":"American Journal of Perinatology Reports","issn_l":"2157-6998","issn":["2157-6998","2157-7005"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","jufo-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320000","host_organization_name":"Thieme Medical Publishers (Germany)","host_organization_lineage":["https://openalex.org/P4310320000"],"host_organization_lineage_names":["Thieme Medical Publishers (Germany)"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"American Journal of Perinatology Reports","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"http://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-0040-1709982.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5058653290","display_name":"Serin M. Bok","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]},{"id":"https://openalex.org/I177607063","display_name":"The Lundquist Institute","ror":"https://ror.org/025j2nd68","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I177607063"]},{"id":"https://openalex.org/I4210165985","display_name":"Harbor\u2013UCLA Medical Center","ror":"https://ror.org/05h4zj272","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1328359107","https://openalex.org/I4210165985"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Serin M. Bok","raw_affiliation_strings":["Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California","institution_ids":["https://openalex.org/I161318765","https://openalex.org/I177607063","https://openalex.org/I4210165985"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053524663","display_name":"Gabriela Pena Carmona","orcid":"https://orcid.org/0000-0003-3975-7214","observed_orcids":["https://orcid.org/0000-0003-3975-7214"]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]},{"id":"https://openalex.org/I177607063","display_name":"The Lundquist Institute","ror":"https://ror.org/025j2nd68","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I177607063"]},{"id":"https://openalex.org/I4210165985","display_name":"Harbor\u2013UCLA Medical Center","ror":"https://ror.org/05h4zj272","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1328359107","https://openalex.org/I4210165985"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Gabriela E. Pena Carmona","raw_affiliation_strings":["Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California","institution_ids":["https://openalex.org/I161318765","https://openalex.org/I177607063","https://openalex.org/I4210165985"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066050427","display_name":"Jake Crawford","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]},{"id":"https://openalex.org/I177607063","display_name":"The Lundquist Institute","ror":"https://ror.org/025j2nd68","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I177607063"]},{"id":"https://openalex.org/I4210165985","display_name":"Harbor\u2013UCLA Medical Center","ror":"https://ror.org/05h4zj272","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1328359107","https://openalex.org/I4210165985"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jake Crawford","raw_affiliation_strings":["Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California","institution_ids":["https://openalex.org/I161318765","https://openalex.org/I177607063","https://openalex.org/I4210165985"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Ramy Eskander","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]},{"id":"https://openalex.org/I177607063","display_name":"The Lundquist Institute","ror":"https://ror.org/025j2nd68","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I177607063"]},{"id":"https://openalex.org/I4210165985","display_name":"Harbor\u2013UCLA Medical Center","ror":"https://ror.org/05h4zj272","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1328359107","https://openalex.org/I4210165985"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ramy Eskander","raw_affiliation_strings":["Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California","institution_ids":["https://openalex.org/I161318765","https://openalex.org/I177607063","https://openalex.org/I4210165985"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021572666","display_name":"Mina Desai","orcid":"https://orcid.org/0000-0002-0192-0189","observed_orcids":["https://orcid.org/0000-0002-0192-0189"]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]},{"id":"https://openalex.org/I177607063","display_name":"The Lundquist Institute","ror":"https://ror.org/025j2nd68","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I177607063"]},{"id":"https://openalex.org/I4210165985","display_name":"Harbor\u2013UCLA Medical Center","ror":"https://ror.org/05h4zj272","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1328359107","https://openalex.org/I4210165985"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mina Desai","raw_affiliation_strings":["Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California","institution_ids":["https://openalex.org/I161318765","https://openalex.org/I177607063","https://openalex.org/I4210165985"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5075730499","display_name":"Michael Glenn Ross","orcid":"https://orcid.org/0000-0001-5500-404X","observed_orcids":["https://orcid.org/0000-0001-5500-404X"]},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]},{"id":"https://openalex.org/I177607063","display_name":"The Lundquist Institute","ror":"https://ror.org/025j2nd68","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I177607063"]},{"id":"https://openalex.org/I4210165985","display_name":"Harbor\u2013UCLA Medical Center","ror":"https://ror.org/05h4zj272","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1328359107","https://openalex.org/I4210165985"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Michael G. Ross","raw_affiliation_strings":["Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California","institution_ids":["https://openalex.org/I161318765","https://openalex.org/I177607063","https://openalex.org/I4210165985"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5075730499"],"corresponding_institution_ids":["https://openalex.org/I161318765","https://openalex.org/I177607063","https://openalex.org/I4210165985"],"apc_list":{"value":2300,"currency":"USD","value_usd":2300},"apc_paid":{"value":2300,"currency":"USD","value_usd":2300},"fwci":0.3059,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.6408296,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"10","issue":"02","first_page":"e183","last_page":"e186"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10453","display_name":"Maternal and Perinatal Health Interventions","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10453","display_name":"Maternal and Perinatal Health Interventions","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11389","display_name":"Maternal and fetal healthcare","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10979","display_name":"Breastfeeding Practices and Influences","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/second-stage-of-labor","display_name":"second stage of labor","score":0.9959999918937683},{"id":"https://openalex.org/keywords/delayed-pushing","display_name":"delayed pushing","score":0.7630000114440918},{"id":"https://openalex.org/keywords/uterine-contraction-frequency","display_name":"uterine contraction frequency","score":0.8510000109672546},{"id":"https://openalex.org/keywords/primiparous-women","display_name":"primiparous women","score":0.8320000171661377},{"id":"https://openalex.org/keywords/multiparous-women","display_name":"multiparous women","score":0.9990000128746033},{"id":"https://openalex.org/keywords/epidural-analgesia","display_name":"epidural analgesia","score":0.9100000262260437},{"id":"https://openalex.org/keywords/normal-vaginal-delivery","display_name":"normal delivery","score":0.9520000219345093},{"id":"https://openalex.org/keywords/labor-duration","display_name":"labor duration","score":0.5809999704360962},{"id":"https://openalex.org/keywords/fetal-weight","display_name":"fetal weight","score":0.5740000009536743}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7597070932388306},{"id":"https://openalex.org/C163415756","wikidata":"https://www.wikidata.org/wiki/Q126473","display_name":"Contraction (grammar)","level":2,"score":0.6345231533050537},{"id":"https://openalex.org/C2776766599","wikidata":"https://www.wikidata.org/wiki/Q1751296","display_name":"Uterine contraction","level":3,"score":0.5725841522216797},{"id":"https://openalex.org/C117354338","wikidata":"https://www.wikidata.org/wiki/Q1165112","display_name":"Singleton","level":3,"score":0.5520803332328796},{"id":"https://openalex.org/C146357865","wikidata":"https://www.wikidata.org/wiki/Q1123245","display_name":"Stage (stratigraphy)","level":2,"score":0.44159069657325745},{"id":"https://openalex.org/C131872663","wikidata":"https://www.wikidata.org/wiki/Q5284418","display_name":"Obstetrics","level":1,"score":0.4362272620201111},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.32641881704330444},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.23852401971817017},{"id":"https://openalex.org/C2779066055","wikidata":"https://www.wikidata.org/wiki/Q9612","display_name":"Uterus","level":2,"score":0.11975505948066711},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1055/s-0040-1709982","doi":"https://doi.org/10.1055/s-0040-1709982","is_oa":true,"landing_page_url":"https://doi.org/10.1055/s-0040-1709982","pdf_url":"http://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-0040-1709982.pdf","source":{"id":"https://openalex.org/S2739049016","display_name":"American Journal of Perinatology Reports","issn_l":"2157-6998","issn":["2157-6998","2157-7005"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","jufo-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320000","host_organization_name":"Thieme Medical Publishers (Germany)","host_organization_lineage":["https://openalex.org/P4310320000"],"host_organization_lineage_names":["Thieme Medical Publishers (Germany)"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"American Journal of Perinatology Reports","raw_type":"journal-article"},{"id":"pmh:oai:pubmedcentral.nih.gov:7305017","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7305017","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"AJP Rep","raw_type":"Text"},{"id":"pmid:32577321","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/32577321","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"AJP reports","raw_type":"Case Reports"},{"id":"pmh:oai:doaj.org/article:6ba7414b82714a31930b4b5fb1979d55","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/6ba7414b82714a31930b4b5fb1979d55","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"American Journal of Perinatology Reports, Vol 10, Iss 02, Pp e183-e186 (2020)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1055/s-0040-1709982","doi":"https://doi.org/10.1055/s-0040-1709982","is_oa":true,"landing_page_url":"https://doi.org/10.1055/s-0040-1709982","pdf_url":"http://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-0040-1709982.pdf","source":{"id":"https://openalex.org/S2739049016","display_name":"American Journal of Perinatology Reports","issn_l":"2157-6998","issn":["2157-6998","2157-7005"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","jufo-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320000","host_organization_name":"Thieme Medical Publishers (Germany)","host_organization_lineage":["https://openalex.org/P4310320000"],"host_organization_lineage_names":["Thieme Medical Publishers (Germany)"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"American Journal of Perinatology Reports","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.9537000060081482,"id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3036603839.pdf","grobid_xml":"https://content.openalex.org/works/W3036603839.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W1524587316","https://openalex.org/W1969710686","https://openalex.org/W1973692785","https://openalex.org/W1974079583","https://openalex.org/W1975558091","https://openalex.org/W1997655947","https://openalex.org/W2000772220","https://openalex.org/W2012544935","https://openalex.org/W2015143195","https://openalex.org/W2019225810","https://openalex.org/W2034047467","https://openalex.org/W2035291902","https://openalex.org/W2043659926","https://openalex.org/W2046530072","https://openalex.org/W2061765537","https://openalex.org/W2075771583","https://openalex.org/W2091198294","https://openalex.org/W2092057111","https://openalex.org/W2093153982","https://openalex.org/W2102262391","https://openalex.org/W2106781834","https://openalex.org/W2166993987","https://openalex.org/W2207335547","https://openalex.org/W2294163668","https://openalex.org/W2316442582","https://openalex.org/W2316854121","https://openalex.org/W2320178859","https://openalex.org/W2334553203","https://openalex.org/W2785790451","https://openalex.org/W2896822469","https://openalex.org/W2921860763","https://openalex.org/W4242610425","https://openalex.org/W4246833918"],"related_works":["https://openalex.org/W2905874427","https://openalex.org/W4282838506","https://openalex.org/W2315372924","https://openalex.org/W7055433764","https://openalex.org/W4412462125","https://openalex.org/W4367337882","https://openalex.org/W4285601511","https://openalex.org/W2083713843","https://openalex.org/W2125578861","https://openalex.org/W2039462222"],"abstract_inverted_index":{"Abstract":[0],"Introduction":[1],"Despite":[2],"time":[3],"standards":[4],"for":[5,34,55,75,156],"second":[6,104,179,204],"stage":[7,105,205],"labor,":[8],"\u201cdelayed":[9,189],"pushing,\u201d":[10,190],"uterine":[11],"contraction":[12,16,211],"frequency,":[13],"and":[14,42,65,71,117,137,193,201,216],"alternate":[15],"pushing":[17,31,76,81,125,158,184,191,210],"may":[18,208],"alter":[19],"the":[20,28,174,178,181],"effective":[21],"maternal":[22],"effort.":[23],"We":[24],"sought":[25],"to":[26],"quantify":[27],"number":[29,123,182],"of":[30,57,124,177,183,188,195,198,214,218],"contractions":[32,82,126,159,185],"needed":[33],"a":[35,102,154],"spontaneous":[36],"vaginal":[37],"delivery":[38],"(SVD)":[39],"among":[40,127,160],"primipara":[41,64,129,161],"multipara":[43,67,138],"patients.":[44],"Methods":[45],"Deliveries":[46],"at":[47],"Harbor-UCLA":[48],"Medical":[49],"Center":[50],"in":[51,99],"2017":[52],"were":[53,69,83],"selected":[54],"SVD":[56,215],"singleton,":[58],"term":[59],"newborns.":[60],"The":[61],"first":[62],"100":[63,66],"deliveries":[68],"analyzed":[70],"monitor":[72],"tracings":[73],"quantified":[74],"contractions.":[77,196],"Results":[78],"Significantly":[79],"more":[80],"required":[84],"by":[85],"primiparas":[86],"versus":[87],"multiparas":[88],"(17.3":[89],"\u00b1":[90,94,107,111,131,135,141,145],"1.7":[91],"vs.":[92,109,133,143],"5.5":[93],"0.7;":[95],"p":[96,114],"<":[97,115],"0.001)":[98,116],"accord":[100],"with":[101,121,173,203],"longer":[103],"(86.7":[106],"7.8":[108],"27.2":[110],"4.9":[112],"min;":[113],"epidural":[118],"was":[119],"associated":[120],"greater":[122],"both":[128],"(18.5":[130],"1.8":[132],"10.8":[134],"0.8)":[136],"women":[139],"(6.1":[140],"0.8":[142],"4.1":[144],"0.3).":[146],"Newborn":[147],"weight":[148],"(<3000,":[149],"3000\u20133500,":[150],">3500":[151],"g)":[152],"demonstrated":[153],"trend":[155],"increased":[157],"(16.9,":[162],"16.5,":[163],"19.8":[164],"pushes,":[165],"respectively)":[166],"though":[167],"not":[168],"multiparas.":[169],"Conclusion":[170],"Although":[171],"correlated":[172],"absolute":[175],"duration":[176],"stage,":[180],"eliminates":[186],"ambiguities":[187],"every-other,":[192],"frequency":[194],"Examination":[197],"larger":[199],"databases":[200],"patients":[202],"\u201carrest":[206],"disorders\u201d":[207],"provide":[209],"criteria":[212],"predictive":[213],"prevention":[217],"morbidity.":[219]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-10-28T10:33:24.094632","created_date":"2020-06-25T00:00:00"}
