Miranda, Gonzalo [VIPoma in retroperitoneum of elderly, cause of chronic diarrhea in uncommon location]. [electronic resource] - Revista de gastroenterologia del Peru : organo oficial de la Sociedad de Gastroenterologia del Peru - 355-7 p. digital Publication Type: Case Reports; Journal Article ISSN: 1609-722X Subjects--Topical Terms: AgedBiopsyChronic DiseaseDiarrhea--etiologyHumansMaleRadiography, InterventionalRetroperitoneal Neoplasms--complicationsTomography, X-Ray ComputedVipoma--complications