Wallner (MacLeod) S, Kendall P, Hillers V, Bradshaw E, Medeiros LC. Online continuing education course enhances nutrition and health professionals' knowledge of food safety issues of high-risk populations. J Am Diet Assoc. 2007 Aug;107(8):1333-8. doi: 10.1016/j.jada.2007.05.014
Rothman KJ, Cann CI, Flanders D, Fried MP. Epidemiology of laryngeal cancer. Epidemiol Rev. 1980;2(1):195-205.