[The influence of purification on the activity of blood group factor A from human erythrocytes].
D001789:Blood Group Antigens; D004912:Erythrocytes; D014805:Vitamin B 12 / Q000031:analogs & derivatives
D001789:Blood Group Antigens; C413332:factor A; D014805:Vitamin B 12
BLOOD GROUPS; ERYTHROCYTES