1. Parents with doubts about vaccines: which vaccines and reasons why;Gust;Pediatrics,2008
2. Ruining it for the rest of us [transcript]. This American Life. National Public Radio. December 12, 2008. Available at: www.thisamericanlife.org/radio-archives/episode/370/Ruining-It-for-the-Rest-of-Us. Accessed September 19, 2011
3. Wikipedia. Lady Mary Wortley Montagu. Available at: http://en.wikipedia.org/wiki/Lady_Mary_Wortley_Montague. Accessed September 19, 2011
4. Edward Jenner and the history of smallpox and vaccination;Riedel;Proc (Bayl Univ Med Cent),2005