J S Barbieri1, M R Wehner2. 1. Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, U.S.A. 2. Department of Dermatology, MD Anderson Cancer Center, Houston, TX, U.S.A.
Authors: Larissa Shamseer; David Moher; Mike Clarke; Davina Ghersi; Alessandro Liberati; Mark Petticrew; Paul Shekelle; Lesley A Stewart Journal: BMJ Date: 2015-01-02