Endoscopic biliary sphincterotomy and small-caliber pancreatic stenting versus sphincterotomy alone in patients with acute gallstone pancreatitis – A prospective nonrandomized study - Madácsy, L; Fejes, R; Kurucsai, G; Juhász, V; Joó, I; Székely, A (Zeitschrift für Gastroenterologie, 2009)