Wassef W, DeWitt J, McGreevy K, Wilcox M, Whitcomb D, Yadav D, Amann S, Mishra G, Alkaade S, Romagnuolo J, Stevens T, Vargo J, Gardner T, Singh V, Park W, Hartigan C, Barton B, Bova C. Pancreatitis Quality of Life Instrument: A Psychometric Evaluation. Am J Gastroenterol. 2016 08; 111(8):1177-86.