Bibliography

1. “NFL Head Injuries.” Issues & Controversies On File: n. pag. Issues & Controversies. Facts on File News Services, 18 Dec. 2009. Web. 28 Oct. 2013. http://www.2facts.com/article/i1400660.
2. “Testimony from Congressional Hearing on NFL Head Injuries (sidebar).” Issues& Controversies On File: n. pag. Issues& Controversies. Facts on File News Services, 18 Dec. 2009. Web. 6 Nov. 2013. http://www.2facts.com/article/ib140663.
3. “Key Events in the History of NFL Head Injuries (sidebar).” Issues and Controversies On File: n. pag. Issues& Controversies. Facts On File News Services, 18 Dec. 2009. Web. 6 Nov. 2013. http://www.2facts.com/article/ib140661.
4. http://www.ask.com/question/roger-goodell-email-address