The symptomatic omprovement (SI) outcome to assess long-term otcome of endoscopic dual pancreatobiliary sphincterotomy (DES) in patients with manometry-documented sphincter of Oddi dysfunction (SOD) and normal pancreatogram (abstract). - Park,S.H.; Mc Henry,L.; Fogel,E.L. (Gastrointest Endosc, 2003)