Uncommon CHEK2 mis-sense variant and reduced risk of tobacco-related cancers: case control study. by Brennan, P, McKay, J, Moore, L, Zaridze, D, Mukeria, A, Szeszenia-Dabrowska, N, Lissowska, J, Rudnai, P, Fabianova, E, Mates, D, Bencko, V, Foretova, L, Janout, V, Chow, W, Rothman, N, Chabrier, A, Gaborieau, V, Odefrey, F, Southey, M, Hashibe, M, Hall, J, Boffetta, P, Peto, J, Peto, R, Hung, R