Mother-child ABO incompatibility; a relation of secretor status to mental deficiency.
D000743:Anemia, Hemolytic; D001789:Blood Group Antigens; D001787:Blood Group Incompatibility; D004032:Diet; D006801:Humans; D008607:Intellectual Disability; D009035:Mothers; D012574:Schools; D014801:Vitamin A
D001789:Blood Group Antigens; D014801:Vitamin A
BLOOD/groups; FEEBLEMINDEDNESS; IDIOCY; SCHOOLS/diet in; VITAMIN A