Are metabolic signatures mediating the relationship between lifestyle factors and hepatocellular carcinoma risk? Results from a nested case-control study in EPIC - Assi, N; Thomas, DC; Leitzmann, M; Stepien, M; Chajès, V; Philip, T; Vineis, P; Bamia, C; Boutron-Ruault, M-C; Sandanger, TM; Molinuevo, A; Boshuizen, HC; et al. (Cancer Epidemiology, Biomarkers and Prevention, 2018)