[On the problem of blood group determination in pregnancy].
D000017:ABO Blood-Group System; D004899:Erythroblastosis, Fetal / Q000517:prevention & control*; D005260:Female; D005860:Germany, West; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy
D000017:ABO Blood-Group System
Zur Frage der Blutgruppenbestimmung bei Schwangeren.