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
Fleming AD, Palka P, McDicken WN, Fenn LN, Sutherland GR. Verification of cardiac Doppler tissue images using grey-scale M-mode images. Ultrasound Med Biol. 1996 Jan 1;22(5):573-81. doi: 10.1016/0301-5629(95)02065-9
Fleming AD, McDicken WN, Sutherland GR, Hoskins PR. Assessment of colour Doppler tissue imaging using test-phantoms. Ultrasound Med Biol. 1994 Jan 1;20(9):937-51. doi: 10.1016/0301-5629(94)90053-1