Campylobacter pylori infection in homosexuals.
D000328:Adult; D000907:Antibodies, Bacterial / Q000032:analysis; D002167:Campylobacter / Q000276:immunology; D002169:Campylobacter Infections / Q000276:immunology* / Q000635:transmission; D006716:Homosexuality; D006801:Humans; D008297:Male; D008875:Middle Aged
D000907:Antibodies, Bacterial