title: In-vitro fertilisation and sex ratio.
authors.forename: S S
authors.initials: SS
authors.lastname: Thatcher
authors.forename: U
authors.initials: U
authors.lastname: Restrepo
authors.forename: G
authors.initials: G
authors.lastname: Lavy
authors.forename: A H
authors.initials: AH
authors.lastname: DeCherney
mesh_terms: D005260:Female; D005307:Fertilization in Vitro / Q000379:methods*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D012744:Sex Ratio