Authors: Holger J Schünemann; Lubna A Al-Ansary; Frode Forland; Sonja Kersten; Jorma Komulainen; Ina B Kopp; Fergus Macbeth; Susan M Phillips; Craig Robbins; Philip van der Wees; Amir Qaseem Journal: Ann Intern Med Date: 2015-10-06 Impact factor: 25.391