{"id":"https://openalex.org/W2011933774","doi":"https://doi.org/10.1097/00006254-199007000-00017","title":"Risk of Ovulation During Lactation","display_name":"Risk of Ovulation During Lactation","publication_year":1990,"publication_date":"1990-07-01","ids":{"openalex":"https://openalex.org/W2011933774","doi":"https://doi.org/10.1097/00006254-199007000-00017","mag":"2011933774"},"language":"en","primary_location":{"id":"doi:10.1097/00006254-199007000-00017","doi":"https://doi.org/10.1097/00006254-199007000-00017","is_oa":false,"landing_page_url":"https://doi.org/10.1097/00006254-199007000-00017","pdf_url":null,"source":{"id":"https://openalex.org/S115789314","display_name":"Obstetrical & Gynecological Survey","issn_l":"0029-7828","issn":["0029-7828","1533-9866"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310315671","host_organization_name":"Lippincott Williams & Wilkins","host_organization_lineage":["https://openalex.org/P4310315671","https://openalex.org/P4310318547"],"host_organization_lineage_names":["Lippincott Williams & Wilkins","Wolters Kluwer"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Obstetrical & Gynecological Survey","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5032482663","display_name":"Ronald Henry Gray","orcid":"https://orcid.org/0000-0003-1952-6507","observed_orcids":["https://orcid.org/0000-0003-1952-6507"]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"RONALD H. GRAY","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071445474","display_name":"Oona M. R. Campbell","orcid":"https://orcid.org/0000-0002-9311-0115","observed_orcids":["https://orcid.org/0000-0002-9311-0115"]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"OONA M. CAMPBELL","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062598034","display_name":"Ruben A. Apelo","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"RUBEN APELO","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073718309","display_name":"Susan Eslami","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"SUSAN S. ESLAMI","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111518806","display_name":"Howard A. Zacur","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"HOWARD ZACUR","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111676623","display_name":"Rebecca Ramos","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"REBECCA M. RAMOS","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090565542","display_name":"JUDITH C. GEHRET","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"JUDITH C. GEHRET","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053362728","display_name":"Miriam H. Labbok","orcid":"https://orcid.org/0000-0001-9515-3963","observed_orcids":["https://orcid.org/0000-0001-9515-3963"]},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},{"id":"https://openalex.org/I4405279716","display_name":"Dr. Jose Fabella Memorial Hospital","ror":"https://ror.org/01x0t0608","country_code":"PH","type":"healthcare","lineage":["https://openalex.org/I4405279716"]}],"countries":["PH","US"],"is_corresponding":false,"raw_author_name":"MIRIAM H. LABBOK","raw_affiliation_strings":["Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","Johns Hopkins University","Joseph Fabella Memorial Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, Maryland, and Joseph Fabella Memorial Hospital, Manila, Philippines","institution_ids":["https://openalex.org/I145311948","https://openalex.org/I4405279716"]},{"raw_affiliation_string":"Johns Hopkins University","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Joseph Fabella Memorial Hospital","institution_ids":["https://openalex.org/I4405279716"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.13550501,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":94},"biblio":{"volume":"45","issue":"7","first_page":"477","last_page":"478"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10979","display_name":"Breastfeeding Practices and Influences","score":0.5059000253677368,"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"}},"topics":[{"id":"https://openalex.org/T10979","display_name":"Breastfeeding Practices and Influences","score":0.5059000253677368,"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"}},{"id":"https://openalex.org/T10600","display_name":"Reproductive Health and Contraception","score":0.38670000433921814,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational 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/T12103","display_name":"Cancer Risks and Factors","score":0.015399999916553497,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"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/ovulation","display_name":"ovulation","score":0.9240000247955322},{"id":"https://openalex.org/keywords/lactation","display_name":"lactation","score":0.9959999918937683},{"id":"https://openalex.org/keywords/breastfeeding","display_name":"breastfeeding","score":0.6159999966621399},{"id":"https://openalex.org/keywords/fertility","display_name":"fertility","score":0.41999998688697815},{"id":"https://openalex.org/keywords/postpartum-contraception","display_name":"postpartum contraception","score":0.5830000042915344}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9659225940704346},{"id":"https://openalex.org/C2776659692","wikidata":"https://www.wikidata.org/wiki/Q719426","display_name":"Lactation","level":3,"score":0.8349671959877014},{"id":"https://openalex.org/C2777702977","wikidata":"https://www.wikidata.org/wiki/Q187082","display_name":"Ovulation","level":3,"score":0.7838461399078369},{"id":"https://openalex.org/C131872663","wikidata":"https://www.wikidata.org/wiki/Q5284418","display_name":"Obstetrics","level":1,"score":0.4754626154899597},{"id":"https://openalex.org/C29456083","wikidata":"https://www.wikidata.org/wiki/Q1221899","display_name":"Gynecology","level":1,"score":0.3751299977302551},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.21559691429138184},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.18811765313148499},{"id":"https://openalex.org/C71315377","wikidata":"https://www.wikidata.org/wiki/Q11364","display_name":"Hormone","level":2,"score":0.06942334771156311},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.03819027543067932},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1097/00006254-199007000-00017","doi":"https://doi.org/10.1097/00006254-199007000-00017","is_oa":false,"landing_page_url":"https://doi.org/10.1097/00006254-199007000-00017","pdf_url":null,"source":{"id":"https://openalex.org/S115789314","display_name":"Obstetrical & Gynecological Survey","issn_l":"0029-7828","issn":["0029-7828","1533-9866"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310315671","host_organization_name":"Lippincott Williams & Wilkins","host_organization_lineage":["https://openalex.org/P4310315671","https://openalex.org/P4310318547"],"host_organization_lineage_names":["Lippincott Williams & Wilkins","Wolters Kluwer"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Obstetrical & Gynecological Survey","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4000000059604645,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2278474327","https://openalex.org/W2015131153","https://openalex.org/W2472065915","https://openalex.org/W2006997262","https://openalex.org/W4245466682","https://openalex.org/W2412052267","https://openalex.org/W7036443478","https://openalex.org/W2439133018","https://openalex.org/W2411876790","https://openalex.org/W2427637847"],"abstract_inverted_index":{"GRAY,":[0],"RONALD":[1],"H.;":[2],"CAMPBELL,":[3],"OONA":[4],"M.;":[5,15],"APELO,":[6],"RUBEN;":[7],"ESLAMI,":[8],"SUSAN":[9],"S.;":[10],"ZACUR,":[11],"HOWARD;":[12],"RAMOS,":[13],"REBECCA":[14],"GEHRET,":[16],"JUDITH":[17],"C.;":[18],"LABBOK,":[19],"MIRIAM":[20],"H.":[21],"Author":[22],"Information":[23]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}