Christensen T, Riis AH, Hatch EE, Wise LA, Nielsen MG, Rothman KJ, Toft Sorensen H, Mikkelsen EM. Costs and efficiency of online and offline recruitment methods: a web-based cohort study. J Med Internet Res. 2017 Mar 1;19(3):e58. doi: 10.2196/jmir.6716
Fernandez MM, Wang J, Ye X, Kwong WJ, Sherif B, Hogue S, Sherrill B. Systematic review and network meta-analysis of the relative efficacy and safety of edoxaban versus other nonvitamin K antagonist oral anticoagulants among patients with nonvalvular atrial fibrillation and CHADS2 score slanted greater than or equal to 2. SAGE Open Med. 2015 Dec. doi: 10.1177/2050312115613350
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