title: Fetal-maternal incompatibility.
mesh_terms: D005260:Female; D005333:Fetus / Q000276:immunology*; D006648:Histocompatibility; D006801:Humans; D008297:Male; D011225:Pre-Eclampsia / Q000276:immunology*; D011247:Pregnancy; D012730:Sex Chromosomes; D012744:Sex Ratio