Lactase persistence and bitter taste response: instrumental variables and mendelian randomization in epidemiologic studies of dietary factors and cancer risk.
Authors:
Sacerdote C, Guarrera S, Smith GD, Grioni S, Krogh V, Masala G, Mattiello A, Palli D, Panico S, Tumino R, Veglia F, Matullo G, Vineis P.
Journal:
Am J Epidemiol 2007; 166: 576-81.