Authors: Peter Croft; Douglas G Altman; Jonathan J Deeks; Kate M Dunn; Alastair D Hay; Harry Hemingway; Linda LeResche; George Peat; Pablo Perel; Steffen E Petersen; Richard D Riley; Ian Roberts; Michael Sharpe; Richard J Stevens; Danielle A Van Der Windt; Michael Von Korff; Adam Timmis Journal: BMC Med Date: 2015-01-30 Impact factor: 8.775