title: S-2, A NEW PHENOTYPE IN THE MN BLOOD GROUP SYSTEM.
mesh_terms: D001168:Arthritis; D001172:Arthritis, Rheumatoid; D001789:Blood Group Antigens; D004200:Diseases in Twins; D005826:Genetics, Medical; D006384:Hemagglutination; D006386:Hemagglutination Tests; D006801:Humans; D007106:Immune Sera; D010641:Phenotype; D044465:White People
chemical_list: D001789:Blood Group Antigens; D007106:Immune Sera
keywords: ARTHRITIS, RHEUMATOID; BLOOD GROUPS; CAUCASIAN RACE; DISEASES IN TWINS; GENETICS, HUMAN; HEMAGGLUTINATION; IMMUNE SERUMS