Authors: Cari L Meinhold; Amy Berrington de González; Elise D Bowman; Alina V Brenner; Raymond T Jones; James V Lacey; Christopher A Loffredo; Donna Perlmutter; Sara J Schonfeld; Glenwood E Trivers; Curtis C Harris Journal: Int J Cancer Date: 2011-03-15 Impact factor: 7.396
Authors: Gordon H Guyatt; Andrew D Oxman; Gunn E Vist; Regina Kunz; Yngve Falck-Ytter; Pablo Alonso-Coello; Holger J Schünemann Journal: BMJ Date: 2008-04-26