*[http://www.ncbi.nlm.nih.gov/sites/entrez?Db=PubMed&Cmd=ShowDetailView&TermToSearch=578386&ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVAbstractPlus N. Sohn, JG Robilotti Jr. ''The gay bowel syndrome. A review of colonic and rectal conditions in 200 male homosexuals''. AM J Gastroenterol 1977 May;67(5):478-84] | *[http://www.ncbi.nlm.nih.gov/sites/entrez?Db=PubMed&Cmd=ShowDetailView&TermToSearch=578386&ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVAbstractPlus N. Sohn, JG Robilotti Jr. ''The gay bowel syndrome. A review of colonic and rectal conditions in 200 male homosexuals''. AM J Gastroenterol 1977 May;67(5):478-84] |