Erratum to: Cancer outcomes and all-cause mortality in adults allocated to metformin: systematic review and collaborative meta-analysis of randomised clinical trials. (Diabetologia, 2012)

(untitled) - Stevens, R; Ali, R; Bankhead, C; Bethel, M; Cairns, B; Camisasca, R; Crowe, F; Farmer, A; Harrison, S; Hirst, J; Home, P; Kahn, SE; et al.