[Study of the distribution of blood groups of the ABO system and of the Rh system in patients in the Hospital Clinico de San Carlos].
D000017:ABO Blood-Group System; D001699:Biometry; D001789:Blood Group Antigens / Q000706:statistics & numerical data*; D006761:Hospitals; D006801:Humans; D012204:Rh-Hr Blood-Group System / Q000706:statistics & numerical data*
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D012204:Rh-Hr Blood-Group System
BLOOD GROUPS/statistics; RH FACTORS/statistics