Groenwold R, Uddin M, Roes K, de Boer A, Rivero-Ferrer E, Martin E, Gatto N, Klungel O. Instrumental variable analysis in randomized trials with non-compliance and observational pharmacoepidemiologic studies. OA Epidemiology. 2014 May 9;2(1):9.
McIntyre LF, Beach WR, Higgins LD, Mordin MM, Mauskopf J, Sweeney CT, Copley-Merriman C. Evidence-based medicine, appropriate-use criteria, and sports medicine: how best to develop meaningful treatment guidelines. Arthroscopy. 2013 Mar 18;29(7):1224-9.