title: ON THE SUBGROUPS OF A AND B BLOOD GROUPS.
mesh_terms: D000017:ABO Blood-Group System; D044466:Asian People; D001699:Biometry; D002965:Classification; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D013223:Statistics as Topic; D044465:White People
chemical_list: D000017:ABO Blood-Group System
keywords: ABO FACTORS; CAUCASIAN RACE; CLASSIFICATION; HEMAGGLUTINATION INHIBITION TESTS; MONGOLOID RACE; STATISTICS