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Renehan, Andrew G; Tyson, Margaret; Egger, Matthias; Heller, Richard F; Zwahlen, Marcel (2008). Body-mass index and incidence of cancer: a systematic review and meta-analysis of prospective observational studies. Lancet, 371(9612), pp. 569-78. London: Elsevier 10.1016/S0140-6736(08)60269-X
