Walter Cannon was a neurologist and physiologist and the first to use X-rays in physiological studies
Walter B. Cannon. (2013). The Biography Channel website. Retrieved 02:10, May 24, 2013, from http://www.biography.com/people/walter-b-cannon-38860.
Walter B. Cannon. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/walter-b-cannon-38860 [Accessed 24 May 2013].
"Walter B. Cannon." 2013. The Biography Channel website. May 24 2013, 02:10 http://www.biography.com/people/walter-b-cannon-38860.
"Walter B. Cannon," The Biography Channel website, 2013, http://www.biography.com/people/walter-b-cannon-38860 [accessed May 24, 2013].
"Walter B. Cannon," The Biography Channel website, http://www.biography.com/people/walter-b-cannon-38860 (accessed May 24, 2013).
Walter B. Cannon [Internet]. The Biography Channel website; 2013 [cited 2013 May 24] Available from: http://www.biography.com/people/walter-b-cannon-38860.
Walter B. Cannon, http://www.biography.com/people/walter-b-cannon-38860 (last visited May 24, 2013).
Walter B. Cannon. The Biography Channel website. 2013. Available at: http://www.biography.com/people/walter-b-cannon-38860. Accessed May 24, 2013.