ABH salivary secretion in twins.
D000017:ABO Blood-Group System; D000372:Agglutination Tests; D000704:Analysis of Variance; D000941:Antigens / Q000032:analysis*; D001938:Brazil; D005260:Female; D005828:Genetics, Population; D006801:Humans; D008297:Male; D011247:Pregnancy; D012463:Saliva / Q000032:analysis*; D014427:Twins
D000017:ABO Blood-Group System; D000941:Antigens