Launois R, Le Moine J, Uzzan B, Fiestas Navarette LI, Benamouzig R. Systematic review and bivariate/HSROC random-effect meta-analysis of immunochemical andguaiac-based fecal occult blood tests for colorectal cancer screening. Eur J Gastroenterol Hepatol. 2014 Sep;26(9):978-89. doi: 10.1097/MEG.0000000000000160
Cann CI, Fried MP, Rothman KJ. Epidemiology of squamous-cell cancer of the head and neck. Otolaryngol Clin N Am. 1985 Aug 1;18(3):367-88.