Plasma and dietary carotenoids and vitamins A, C and E and risk of colon and rectal cancer in the European Prospective Investigation into Cancer and Nutrition. by Leenders, M, Leufkens, A, Siersema, P, van Duijnhoven, F, Vrieling, A, Hulshof, P, Gils, v, Overvad, K, Roswall, N, Kyrø, C, Boutron-Ruault, M, Fagerhazzi, G, Cadeau, C, Kühn, T, Johnson, T, Boeing, H, Aleksandrova, K, Trichopoulou, A, Klinaki, E, Androulidaki, A, Palli, D, Grioni, S, Sacerdote, C, Tumino, R, Panico, S