{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T12:45:38Z","timestamp":1774529138985,"version":"3.50.1"},"reference-count":11,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2020,2,1]],"date-time":"2020-02-01T00:00:00Z","timestamp":1580515200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2020,2,1]],"date-time":"2020-02-01T00:00:00Z","timestamp":1580515200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Early Human Development"],"published-print":{"date-parts":[[2020,2]]},"DOI":"10.1016\/j.earlhumdev.2019.104866","type":"journal-article","created":{"date-parts":[[2019,9,4]],"date-time":"2019-09-04T10:52:40Z","timestamp":1567594360000},"page":"104866","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":2,"special_numbering":"C","title":["The sex ratio at birth (2)"],"prefix":"10.1016","volume":"141","author":[{"given":"Victor","family":"Grech","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"issue":"12","key":"10.1016\/j.earlhumdev.2019.104866_bb0005","doi-asserted-by":"crossref","first-page":"793","DOI":"10.1016\/j.earlhumdev.2015.10.003","article-title":"The male to female ratio at birth","volume":"91","author":"Grech","year":"2015","journal-title":"Early Hum. Dev."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0010","article-title":"The effects of Thanksgiving, Christmas and Valentine\u2019s Day on the sex ratio at birth in the United States","volume":"B2","author":"Zammit","year":"2003","journal-title":"Early Hum. Dev."},{"issue":"6827","key":"10.1016\/j.earlhumdev.2019.104866_bb0015","doi-asserted-by":"crossref","first-page":"587","DOI":"10.1136\/bmj.304.6827.587","article-title":"Missing women","volume":"304","author":"Sen","year":"1992","journal-title":"BMJ."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0020","unstructured":"Tafuro S, Guilmoto CZ. Skewed sex ratios at birth: a review of global trends. Early Hum. Dev. B3."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0025","unstructured":"Scherb H, Grech V. Trends in births and the birth sex ratio in the vicinity of the Mainz research reactor in Germany. Early Hum. Dev. B4."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0030","unstructured":"Fellman J. Seasonality and multiple maternities: comparisons between different models. Early Hum. Dev. B5."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0035","unstructured":"James WH, Grech V. The significance of the low sex ratios of offspring and of sibs of probands with systemic lupus erythematosus or rheumatoid arthritis. Early Hum. Dev. B6."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0040","unstructured":"James WH, Grech V. Is exposure to high levels of maternal intrauterine testosterone a causal factor common to male sex, autism, gender dysphoria, and non-right-handedness? Early Hum. Dev. B7."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0045","unstructured":"Flegr J, Ka\u0148kov\u00e1 S. The effects of toxoplasmosis on sex ratio at birth. Early Hum. Dev. B8."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0050","unstructured":"Grech V. Multivariate analysis of the correlation of sex ratio at birth with health and socioeconomic indicators. Early Hum. Dev. B10."},{"key":"10.1016\/j.earlhumdev.2019.104866_bb0055","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1016\/j.earlhumdev.2018.02.002","article-title":"Correlation of sex ratio at birth with health and socioeconomic indicators","volume":"118","author":"Grech","year":"2018","journal-title":"Early Hum. Dev."}],"container-title":["Early Human Development"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0378378219305201?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0378378219305201?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T01:59:07Z","timestamp":1759888747000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0378378219305201"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,2]]},"references-count":11,"alternative-id":["S0378378219305201"],"URL":"https:\/\/doi.org\/10.1016\/j.earlhumdev.2019.104866","relation":{},"ISSN":["0378-3782"],"issn-type":[{"value":"0378-3782","type":"print"}],"subject":[],"published":{"date-parts":[[2020,2]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"The sex ratio at birth (2)","name":"articletitle","label":"Article Title"},{"value":"Early Human Development","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.earlhumdev.2019.104866","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"simple-article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2019 Elsevier B.V. All rights reserved.","name":"copyright","label":"Copyright"}],"article-number":"104866"}}