Authors: David S Riley; Melissa S Barber; Gunver S Kienle; Jeffrey K Aronson; Tido von Schoen-Angerer; Peter Tugwell; Helmut Kiene; Mark Helfand; Douglas G Altman; Harold Sox; Paul G Werthmann; David Moher; Richard A Rison; Larissa Shamseer; Christian A Koch; Gordon H Sun; Patrick Hanaway; Nancy L Sudak; Marietta Kaszkin-Bettag; James E Carpenter; Joel J Gagnier Journal: J Clin Epidemiol Date: 2017-05-18 Impact factor: 6.437