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
Williams VSL, Wakeford ME. The predictive validity of the National Teacher Examinations for performance in teacher education programs. Educ Psychol Meas. 1993;53(2):533-9. doi: 10.1177/0013164493053002023