The Canadian Red Cross blood transfusion service.
D001789:Blood Group Antigens; D001803:Blood Transfusion; D002170:Canada; D006801:Humans; D012011:Red Cross; D012204:Rh-Hr Blood-Group System
D001789:Blood Group Antigens; D012204:Rh-Hr Blood-Group System
BLOOD TRANSFUSION; BLOOD/groups; RED CROSS; Rh FACTOR