Ervin CM, Mangel AW. Clinical trials in irritable bowel syndrome: a review. Rev Recent Clin Trials. 2013 Mar 1;8(1):9-22.
Carrera G, Garcia-Albeniz X, Ayuso JR, Aparicio J, Castells A, Codony-Servat J, Feliu J, Fuster D, Gallego R, Pages M, Torres F, Maurel J. Design and endpoints of clinical and translational trials in advanced colorectal cancer. a proposal from GROUP Español Multidisciplinar en Cancer Digestivo (GEMCAD). Rev Recent Clin Trials. 2011 May;6(2):158-70. doi: 10.2174/157488711795177868
Pelletier SJ, Fu S, Thyagarajan (Hoffman) V, Romero-Marrero C, Batheja MJ, Punch JD, Magee JC, Lok AS, Fontana RJ, Marrero JA. An intention-to-treat analysis of liver transplantation for hepatocellular carcinoma using organ procurement transplant network data. Liver Transpl Surg. 2009 Aug;15(8):859-68. doi: 10.1002/lt.21778