Hormonal contraceptive use before and after conception in relation to preterm birth and small for gestational age: an observational cohort study

Publisher: John Wiley & Sons Inc

E-ISSN: 1471-0528|122|10|1349-1361

ISSN: 1470-0328

Source: BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Vol.122, Iss.10, 2015-09, pp. : 1349-1361

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Abstract