Blood groups A and B in oral epithelium of young and old men.
D000017:ABO Blood-Group System; D000293:Adolescent; D000328:Adult; D000368:Aged; D001789:Blood Group Antigens; D002648:Child; D003581:Cytodiagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D009061:Mouth Mucosa / Q000276:immunology*
D000017:ABO Blood-Group System; D001789:Blood Group Antigens