Sharp L, Carsin AE, Cantwell MM, Anderson LA, Murray LJ. Intakes of dietary folate and other B vitamins are associated with risks of esophageal adenocarcinoma, Barrett's esophagus, and reflux esophagitis. J Nutr. 2013 Dec;143(12):1966-73. doi: 10.3945/jn.113.174664
Nelson LM, Forsythe A, McLeod L, Pulgar S, Maldonado M, Coles T, Zhang Y, Webb SM, Badia X. Psychometric evaluation of the Cushing's Quality-of-Life Questionnaire. Patient. 2013 Apr 1;Advance Online.