Blood group and secretor status in tropical sprue.
D000017:ABO Blood-Group System; D000328:Adult; D006801:Humans; D008297:Male; D011647:Puerto Rico; D012204:Rh-Hr Blood-Group System; D012463:Saliva / Q000276:immunology*; D013182:Sprue, Tropical / Q000276:immunology*
D000017:ABO Blood-Group System; D012204:Rh-Hr Blood-Group System