Hul, R.L. van der

patient stone bile duct stones cholecystectomy laparoscopic cholecystectomy laparoscopic bile duct treatment endoscopic biliary result pancreatic surgery month cholangiography group lithotripsy operation fragmentation study shock complication table clearance pancreatitis pancreatic stones bile ducts endoscopic sphincterotomy stone fragmentation follow-up symptom exploration resection gallbladder extracorporeal hospital chapter bile duct exploration choledocholithiasi mortality sphincterotomy gallstone pain relief relief management quality stone clearance pancreatic duct range technique conversion extraction university hospital rotterdam rotterdam stent number lithotriptor intraoperative cholangiography series therapy cholangiocarcinoma preoperative disease figure morbidity survival obstruction procedure contrast medium drainage introduction gallbladder stones shock waves diameter experience calcifying pancreatitis intraoperative endoscopic extraction analysis radiotherapy