title: ABO blood groups and abortion.
mesh_terms: D000017:ABO Blood-Group System; D000022:Abortion, Spontaneous / Q000209:etiology* / Q000276:immunology; D005260:Female; D005315:Fetal Diseases / Q000150:complications; D006801:Humans; D011247:Pregnancy
chemical_list: D000017:ABO Blood-Group System