{"id":"https://openalex.org/W4287831998","doi":"https://doi.org/10.3389/frph.2022.952976","title":"Effect of COVID-19 vaccination on the timing and flow of menstrual periods in two cohorts","display_name":"Effect of COVID-19 vaccination on the timing and flow of menstrual periods in two cohorts","publication_year":2022,"publication_date":"2022-07-25","ids":{"openalex":"https://openalex.org/W4287831998","doi":"https://doi.org/10.3389/frph.2022.952976","pmid":"https://pubmed.ncbi.nlm.nih.gov/36303656","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/9580734"},"language":"en","primary_location":{"id":"doi:10.3389/frph.2022.952976","doi":"https://doi.org/10.3389/frph.2022.952976","is_oa":true,"landing_page_url":"https://doi.org/10.3389/frph.2022.952976","pdf_url":"https://www.frontiersin.org/articles/10.3389/frph.2022.952976/pdf","source":{"id":"https://openalex.org/S4210207188","display_name":"Frontiers in Reproductive Health","issn_l":"2673-3153","issn":["2673-3153"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1"],"host_organization":"https://openalex.org/P4310320527","host_organization_name":"Frontiers Media","host_organization_lineage":["https://openalex.org/P4310320527"],"host_organization_lineage_names":["Frontiers Media"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Reproductive Health","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.frontiersin.org/articles/10.3389/frph.2022.952976/pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5045138709","display_name":"Alexandra Alvergne","orcid":"https://orcid.org/0000-0002-3151-9919","observed_orcids":["https://orcid.org/0000-0002-3151-9919"]},"institutions":[{"id":"https://openalex.org/I40120149","display_name":"University of Oxford","ror":"https://ror.org/052gg0110","country_code":"GB","type":"education","lineage":["https://openalex.org/I40120149"]},{"id":"https://openalex.org/I4210105943","display_name":"Institut des Sciences de l'Evolution de Montpellier","ror":"https://ror.org/01cah1n37","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I131077856","https://openalex.org/I159885104","https://openalex.org/I19894307","https://openalex.org/I2746051580","https://openalex.org/I2802818602","https://openalex.org/I4210090127","https://openalex.org/I4210105943","https://openalex.org/I4210107625","https://openalex.org/I4210131494","https://openalex.org/I4210166444"]}],"countries":["FR","GB"],"is_corresponding":false,"raw_author_name":"Alexandra Alvergne","raw_affiliation_strings":["School of Anthropology and Museum Ethnography, University of Oxford, Oxford, United Kingdom","School of Anthropology and Museum Ethnography, University of Oxford (Royaume-Uni)","UMR ISEM - Institut des Sciences de l'Evolution de Montpellier (Place E. Bataillon CC 064 34095 Montpellier Cedex 05 - France)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Anthropology and Museum Ethnography, University of Oxford, Oxford, United Kingdom","institution_ids":["https://openalex.org/I40120149"]},{"raw_affiliation_string":"School of Anthropology and Museum Ethnography, University of Oxford (Royaume-Uni)","institution_ids":["https://openalex.org/I40120149"]},{"raw_affiliation_string":"UMR ISEM - Institut des Sciences de l'Evolution de Montpellier (Place E. Bataillon CC 064 34095 Montpellier Cedex 05 - France)","institution_ids":["https://openalex.org/I4210105943"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083484493","display_name":"Ee Von Woon","orcid":"https://orcid.org/0000-0002-4787-1546","observed_orcids":["https://orcid.org/0000-0002-4787-1546"]},"institutions":[{"id":"https://openalex.org/I4210136304","display_name":"Chelsea and Westminster Hospital","ror":"https://ror.org/038zxea36","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I2799869770","https://openalex.org/I4210136304"]},{"id":"https://openalex.org/I47508984","display_name":"Imperial College London","ror":"https://ror.org/041kmwe10","country_code":"GB","type":"education","lineage":["https://openalex.org/I47508984"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ee Von Woon","raw_affiliation_strings":["Department of Metabolism, Digestion and Reproduction, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom","Imperial College London (South Kensington Campus, London SW7 2AZ - Royaume-Uni)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Metabolism, Digestion and Reproduction, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom","institution_ids":["https://openalex.org/I4210136304","https://openalex.org/I47508984"]},{"raw_affiliation_string":"Imperial College London (South Kensington Campus, London SW7 2AZ - Royaume-Uni)","institution_ids":["https://openalex.org/I47508984"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5017399369","display_name":"Victoria H. Male","orcid":"https://orcid.org/0000-0001-5654-5083","observed_orcids":["https://orcid.org/0000-0001-5654-5083"]},"institutions":[{"id":"https://openalex.org/I4210136304","display_name":"Chelsea and Westminster Hospital","ror":"https://ror.org/038zxea36","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I2799869770","https://openalex.org/I4210136304"]},{"id":"https://openalex.org/I47508984","display_name":"Imperial College London","ror":"https://ror.org/041kmwe10","country_code":"GB","type":"education","lineage":["https://openalex.org/I47508984"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Victoria Male","raw_affiliation_strings":["Department of Metabolism, Digestion and Reproduction, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom","Imperial College London (South Kensington Campus, London SW7 2AZ - Royaume-Uni)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Metabolism, Digestion and Reproduction, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom","institution_ids":["https://openalex.org/I4210136304","https://openalex.org/I47508984"]},{"raw_affiliation_string":"Imperial College London (South Kensington Campus, London SW7 2AZ - Royaume-Uni)","institution_ids":["https://openalex.org/I47508984"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5017399369"],"corresponding_institution_ids":["https://openalex.org/I4210136304","https://openalex.org/I47508984"],"apc_list":{"value":1900,"currency":"USD","value_usd":1900},"apc_paid":{"value":1900,"currency":"USD","value_usd":1900},"fwci":17.1672,"has_fulltext":true,"cited_by_count":91,"citation_normalized_percentile":{"value":0.99720139,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"4","issue":null,"first_page":"952976","last_page":"952976"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12054","display_name":"Menstrual Health and Disorders","score":0.43479999899864197,"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"}},"topics":[{"id":"https://openalex.org/T12054","display_name":"Menstrual Health and Disorders","score":0.43479999899864197,"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/T11987","display_name":"COVID-19 Impact on Reproduction","score":0.39329999685287476,"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/T10118","display_name":"SARS-CoV-2 and COVID-19 Research","score":0.05999999865889549,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"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/covid-19-vaccination","display_name":"COVID-19 vaccination","score":0.9950000047683716},{"id":"https://openalex.org/keywords/menstrual-cycle","display_name":"menstrual cycle","score":0.8519999980926514},{"id":"https://openalex.org/keywords/delayed-menstruation","display_name":"delayed menstruation","score":0.6589999794960022},{"id":"https://openalex.org/keywords/menstrual-cycle-length","display_name":"menstrual cycle length","score":0.625},{"id":"https://openalex.org/keywords/hormonal-contraception","display_name":"hormonal contraception","score":0.8399999737739563},{"id":"https://openalex.org/keywords/combined-hormonal-contraception","display_name":"combined hormonal contraceptives","score":0.7720000147819519},{"id":"https://openalex.org/keywords/ovarian-hormones","display_name":"ovarian hormones","score":0.9869999885559082},{"id":"https://openalex.org/keywords/vaccine-safety","display_name":"vaccine safety","score":0.5379999876022339},{"id":"https://openalex.org/keywords/menstrual-bleeding","display_name":"menstrual bleeding","score":0.5109999775886536},{"id":"https://openalex.org/keywords/menstrual-cycle-timing","display_name":"menstrual cycle timing","score":0.5210000276565552}],"concepts":[{"id":"https://openalex.org/C2779058012","wikidata":"https://www.wikidata.org/wiki/Q83864","display_name":"Menstrual cycle","level":3,"score":0.8604300022125244},{"id":"https://openalex.org/C22070199","wikidata":"https://www.wikidata.org/wiki/Q192995","display_name":"Vaccination","level":2,"score":0.7823969125747681},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7201547622680664},{"id":"https://openalex.org/C72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","level":2,"score":0.6375653743743896},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.5417516827583313},{"id":"https://openalex.org/C71315377","wikidata":"https://www.wikidata.org/wiki/Q11364","display_name":"Hormone","level":2,"score":0.5035468935966492},{"id":"https://openalex.org/C42407357","wikidata":"https://www.wikidata.org/wiki/Q521","display_name":"Physiology","level":1,"score":0.4766469895839691},{"id":"https://openalex.org/C2776172332","wikidata":"https://www.wikidata.org/wiki/Q7292449","display_name":"Hormonal contraception","level":5,"score":0.4335446357727051},{"id":"https://openalex.org/C203014093","wikidata":"https://www.wikidata.org/wiki/Q101929","display_name":"Immunology","level":1,"score":0.2863789200782776},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.23737889528274536},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.23297804594039917},{"id":"https://openalex.org/C2779076696","wikidata":"https://www.wikidata.org/wiki/Q1280670","display_name":"Family planning","level":4,"score":0.18778535723686218},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.08429893851280212},{"id":"https://openalex.org/C2986817661","wikidata":"https://www.wikidata.org/wiki/Q185698","display_name":"Research methodology","level":3,"score":0.0}],"mesh":[],"locations_count":7,"locations":[{"id":"doi:10.3389/frph.2022.952976","doi":"https://doi.org/10.3389/frph.2022.952976","is_oa":true,"landing_page_url":"https://doi.org/10.3389/frph.2022.952976","pdf_url":"https://www.frontiersin.org/articles/10.3389/frph.2022.952976/pdf","source":{"id":"https://openalex.org/S4210207188","display_name":"Frontiers in Reproductive Health","issn_l":"2673-3153","issn":["2673-3153"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1"],"host_organization":"https://openalex.org/P4310320527","host_organization_name":"Frontiers Media","host_organization_lineage":["https://openalex.org/P4310320527"],"host_organization_lineage_names":["Frontiers Media"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Reproductive Health","raw_type":"journal-article"},{"id":"doi:10.1101/2022.03.30.22273165","doi":"https://doi.org/10.1101/2022.03.30.22273165","is_oa":true,"landing_page_url":"https://doi.org/10.1101/2022.03.30.22273165","pdf_url":"https://www.medrxiv.org/content/medrxiv/early/2022/03/30/2022.03.30.22273165.full.pdf","source":{"id":"https://openalex.org/S3005729997","display_name":"medRxiv","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":["https://openalex.org/P4310315909"],"host_organization_lineage_names":["Cold Spring Harbor Laboratory Press"],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"medRxiv","raw_type":"posted-content"},{"id":"pmh:oai:pubmedcentral.nih.gov:9580734","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/9580734","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","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Front Reprod Health","raw_type":"Text"},{"id":"pmid:36303656","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/36303656","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":"Frontiers in reproductive health","raw_type":"Journal Article"},{"id":"pmh:oai:HAL:hal-03859231v1","doi":null,"is_oa":true,"landing_page_url":"https://hal.umontpellier.fr/hal-03859231","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4405252976","host_organization_name":"Centre pour la Communication Scientifique Directe","host_organization_lineage":["https://openalex.org/I4405252976"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Frontiers in Reproductive Health, 2022, 4, pp.952976. &#x27E8;10.3389/frph.2022.952976&#x27E9;","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:doaj.org/article:2fb425e21da444ebb62d4356eb452b3a","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/2fb425e21da444ebb62d4356eb452b3a","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":"Frontiers in Reproductive Health, Vol 4 (2022)","raw_type":"article"},{"id":"pmh:oai:spiral.imperial.ac.uk:10044/1/98150","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/10044/1/98150","pdf_url":null,"source":{"id":"https://openalex.org/S4306401396","display_name":"Spiral (Imperial College London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I47508984","host_organization_name":"Imperial College London","host_organization_lineage":["https://openalex.org/I47508984"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.3389/frph.2022.952976","doi":"https://doi.org/10.3389/frph.2022.952976","is_oa":true,"landing_page_url":"https://doi.org/10.3389/frph.2022.952976","pdf_url":"https://www.frontiersin.org/articles/10.3389/frph.2022.952976/pdf","source":{"id":"https://openalex.org/S4210207188","display_name":"Frontiers in Reproductive Health","issn_l":"2673-3153","issn":["2673-3153"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1"],"host_organization":"https://openalex.org/P4310320527","host_organization_name":"Frontiers Media","host_organization_lineage":["https://openalex.org/P4310320527"],"host_organization_lineage_names":["Frontiers Media"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Reproductive Health","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":1.0}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[{"id":"https://openalex.org/G3740231408","display_name":null,"funder_award_id":"WT 105677","funder_id":"https://openalex.org/F4320311904","funder_display_name":"Wellcome Trust"}],"funders":[{"id":"https://openalex.org/F4320311904","display_name":"Wellcome Trust","ror":"https://ror.org/029chgv08"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4287831998.pdf","grobid_xml":"https://content.openalex.org/works/W4287831998.grobid-xml"},"referenced_works_count":32,"referenced_works":["https://openalex.org/W2110065044","https://openalex.org/W2120658378","https://openalex.org/W2120973019","https://openalex.org/W2162151423","https://openalex.org/W2292913502","https://openalex.org/W2792762442","https://openalex.org/W2980741079","https://openalex.org/W3025990187","https://openalex.org/W3043074559","https://openalex.org/W3091368279","https://openalex.org/W3133745688","https://openalex.org/W3134509392","https://openalex.org/W3158373340","https://openalex.org/W3160132616","https://openalex.org/W3165187778","https://openalex.org/W3172389848","https://openalex.org/W3186153681","https://openalex.org/W3187097403","https://openalex.org/W3194332336","https://openalex.org/W3199950273","https://openalex.org/W3200538132","https://openalex.org/W3207448421","https://openalex.org/W3212376102","https://openalex.org/W4200136282","https://openalex.org/W4205639392","https://openalex.org/W4205963670","https://openalex.org/W4206110358","https://openalex.org/W4210615889","https://openalex.org/W4226142758","https://openalex.org/W4285493322","https://openalex.org/W4324340216","https://openalex.org/W6606536654"],"related_works":["https://openalex.org/W4213193488","https://openalex.org/W4385362769","https://openalex.org/W4389775405","https://openalex.org/W4324340216","https://openalex.org/W3212376102","https://openalex.org/W4413105647","https://openalex.org/W4367834662","https://openalex.org/W4313626715","https://openalex.org/W4397030933","https://openalex.org/W4379389919"],"abstract_inverted_index":{"COVID-19":[0,66,72,194],"vaccination":[1,73,131,158,180,195],"protects":[2],"against":[3,148],"the":[4,19,80,104,177,182,198,215],"potentially":[5],"serious":[6],"consequences":[7],"of":[8,22,40,44,48,65,118,126,142,179,187],"SARS-CoV-2":[9],"infection,":[10],"but":[11,83],"some":[12],"people":[13,120],"have":[14],"been":[15],"hesitant":[16],"to":[17,79,164,171,219],"receive":[18],"vaccine":[20],"because":[21],"reports":[23,186],"that":[24,154,193,202,214],"it":[25],"could":[26],"affect":[27],"menstrual":[28,53,109,128,155,183,188,199,216],"bleeding.":[29],"To":[30,100],"determine":[31],"whether":[32],"this":[33,84,134,203],"occurs":[34],"we":[35,112,136,168,212],"prospectively":[36],"recruited":[37,114],"a":[38,77,115,124,138,150,173],"cohort":[39],"79":[41],"individuals,":[42],"each":[43,59],"whom":[45],"recorded":[46],"details":[47],"at":[49,61],"least":[50,62],"three":[51],"consecutive":[52],"cycles,":[54],"during":[55],"which":[56,107],"time":[57],"they":[58],"received":[60],"one":[63],"dose":[64],"vaccine.":[67],"In":[68,133],"spontaneously":[69],"cycling":[70],"participants,":[71],"was":[74,93],"associated":[75],"with":[76],"delay":[78,92],"next":[81],"period,":[82,152],"change":[85],"reversed":[86],"in":[87,95,223],"subsequent":[88],"unvaccinated":[89,224],"cycles.":[90,225],"No":[91],"detected":[94],"those":[96],"taking":[97],"hormonal":[98,144],"contraception.":[99],"explore":[101],"hypotheses":[102],"about":[103],"mechanism":[105],"by":[106,162,208],"these":[108],"changes":[110,156],"occur,":[111],"retrospectively":[113],"larger":[116],"cohort,":[117,135],"1,273":[119],"who":[121],"had":[122],"kept":[123],"record":[125],"their":[127],"cycle":[129,184,200,217],"and":[130,185,201],"dates.":[132],"found":[137],"trend":[139],"toward":[140],"use":[141],"combined":[143],"contraception":[145],"being":[146],"protective":[147],"reporting":[149],"delayed":[151],"suggesting":[153],"following":[157],"may":[159,205],"be":[160,206],"mediated":[161,207],"perturbations":[163],"ovarian":[165,209],"hormones.":[166,210],"However,":[167],"were":[169],"unable":[170],"detect":[172],"clear":[174],"association":[175],"between":[176],"timing":[178],"within":[181],"changes.":[189],"Our":[190],"findings":[191],"suggest":[192],"can":[196],"lengthen":[197],"effect":[204],"Importantly,":[211],"find":[213],"returns":[218],"its":[220],"pre-vaccination":[221],"length":[222]},"counts_by_year":[{"year":2026,"cited_by_count":6},{"year":2025,"cited_by_count":11},{"year":2024,"cited_by_count":26},{"year":2023,"cited_by_count":27},{"year":2022,"cited_by_count":21}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2022-07-26T00:00:00"}
