Authors: Penny F Whiting; Robert F Wolff; Sohan Deshpande; Marcello Di Nisio; Steven Duffy; Adrian V Hernandez; J Christiaan Keurentjes; Shona Lang; Kate Misso; Steve Ryder; Simone Schmidlkofer; Marie Westwood; Jos Kleijnen Journal: JAMA Date: 2015 Jun 23-30 Impact factor: 56.272