Smits Luc, Sep Simone, van Kuijk Sander
Department of Epidemiology, Maastricht University Medical Center, Maastricht, The Netherlands.
Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center, Maastricht, The Netherlands.
Am J Epidemiol. 2015 Dec 1;182(11):975-6. doi: 10.1093/aje/kwv275. Epub 2015 Nov 14.