title: Offspring sex ratios and the causes of placental pathology: the case of placental abruption.
authors.forename: W H
authors.initials: WH
authors.lastname: James
mesh_terms: D000037:Abruptio Placentae / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010922:Placenta Diseases / Q000503:physiopathology*; D011247:Pregnancy; D012744:Sex Ratio