Cheon, Young Koog Effects of vardenafil, a phosphodiesterase type-5 inhibitor, on sphincter of Oddi motility in patients with suspected biliary sphincter of Oddi dysfunction. [electronic resource] - Gastrointestinal endoscopy May 2009 - 1111-6 p. digital Publication Type: Clinical Trial; Journal Article ISSN: 1097-6779 Standard No.: 10.1016/j.gie.2008.07.014 doi Subjects--Topical Terms: Administration, TopicalAdultAgedCholangiopancreatography, Endoscopic RetrogradeCommon Bile Duct Diseases--drug therapyConstriction, Pathologic--drug therapyFemaleHumansImidazoles--adverse effectsMaleManometryMiddle AgedPhosphodiesterase 5 InhibitorsPhosphodiesterase Inhibitors--adverse effectsPiperazines--adverse effectsPostcholecystectomy Syndrome--drug therapyProspective StudiesSphincter of Oddi--drug effectsSphincterotomy, EndoscopicSulfones--adverse effectsTriazines--adverse effectsVardenafil DihydrochlorideVasodilator Agents--adverse effects