SMALLPOX AND THE ABO BLOOD GROUPS IN BRAZIL.
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D001938:Brazil; D001330:Electronic Data Processing; D005826:Genetics, Medical; D005828:Genetics, Population; D006801:Humans; D012899:Smallpox; D012900:Smallpox Vaccine; D013223:Statistics as Topic
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D012900:Smallpox Vaccine
ABO FACTORS; AUTOMATIC DATA PROCESSING; BRAZIL; GENETICS, HUMAN; GENETICS, POPULATION; SMALLPOX; SMALLPOX VACCINE; STATISTICS