ABO incompatibility and parity effects on perinatal mortality.
D000017:ABO Blood-Group System; D001787:Blood Group Incompatibility / Q000401:mortality*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D010298:Parity; D011247:Pregnancy; D012306:Risk; D006113:United Kingdom
D000017:ABO Blood-Group System