Proteomic evidence of dietary sources in ancient dental calculus od Hendy, J, Warinner, C, Bouwman, A, Collins, M, Fiddyment, S, Fischer, R, Hagan, R, Hofman, C, Holst, M, Chaves, E, Klaus, L, Larson, G, Mackie, M, McGrath, K, Mundorff, A, Radini, A, Rao, H, Trachsel, C, Velsko, I, Speller, C