1) Yadav D, Lowenfels AB. Trends in the epidemiology of the first attack of acute pancreatitis: a systematic review. Pancreas 2006; 33: 323-30.
2) Sekimoto M, Takada T, Kawarada Y, et al. JPN Guidelines for the management of acute pancreatitis: epidemiology, etiology, natural history, and outcome predictors in acute pancreatitis. J Hepatobiliary Pancreat Surg 2006; 13: 10-24.
4) Loveday BP, Srinivasa S, Vather R, et al. High quantity and variable quality of guidelines for acute pancreatitis: a systematic review. Am J Gastroenterol 2010; 105: 1466-76.