5Yadav D,Lowenfels AB.Trends in the epidemiology of the first attack of acute pancreatitis:a systematic review[J].Pancreas,2006,33(4):323.
6Coyle WJ,Pineau BC,Tanasky PR,et al.Evaluation of Unexplained acute and acute recurrent pancreatitis using endoscopic retrograde cholangiopancreatography,sphincter of Oddi manometry and endoscopic ultrasound.Endouscopy,2002,34(8):617-623