Sterne, JAC; Savovic, J; Page, MJ; Elbers, RG; Blencowe, NS; Boutron, I; Cates, CJ; Cheng, HY; Corbett, MS; Eldridge, SM; Emberson, JR; Hernan, MA; Hopewell, S; Hrobjartsson, A; Junqueira, DR; Juni, P; Kirkham, JJ; Lasserson, T; Li, T; Mcaleenan, A; Reeves, BC; Shepperd, S; Shrier, I; Stewart, LA; Tilling, K; White, IR; Whiting, PF; Higgins, JPT