title: Quantitative studies on salivary blood group substances. 3. In identical twins.
mesh_terms: D000017:ABO Blood-Group System; D000293:Adolescent; D000328:Adult; D000368:Aged; D001789:Blood Group Antigens; D002648:Child; D005260:Female; D006801:Humans; D007519:Isoantigens / Q000032:analysis*; D007983:Lewis Blood Group Antigens; D008875:Middle Aged; D011247:Pregnancy; D012463:Saliva / Q000276:immunology*; D014427:Twins
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D007519:Isoantigens; D007983:Lewis Blood Group Antigens