Rodriguez-Salas N, Dominguez G, Barderas R, Mendiola M, Garcia-Albeniz X, Maurel J, Batlle JF. Clinical relevance of colorectal cancer molecular subtypes. Crit Rev Oncol Hematol. 2017 Jan;109:9-19. doi: 10.1016/j.critrevonc.2016.11.007
Rothman KJ, Cann CI, Flanders D, Fried MP. Epidemiology of laryngeal cancer. Epidemiol Rev. 1980;2(1):195-205.