Comparison of major protein-source foods and other food groups in meat-eaters and non-meat-eaters in the EPIC-Oxford cohort - Papier, K; Tong, T; Appleby, P; Bradbury, K; Fensom, G; Knuppel, A; Perez-Cornago, A; Schmidt, J; Travis, R; Key, T (Nutrients, 2019)