Pepsin 'A' substance--further uses.
D000017:ABO Blood-Group System; D004899:Erythroblastosis, Fetal / Q000175:diagnosis*; D005260:Female; D006650:Histocompatibility Testing; D006801:Humans; D007231:Infant, Newborn; D010434:Pepsin A; D011247:Pregnancy
D000017:ABO Blood-Group System; D010434:Pepsin A