Cold Sore (Fever Blister): References
Cold Sores. Healthwise. http://www.cigna.com/healthwellness/hw/medical-topics/cold-sores-hw31977. May 2015. Accessed February 2016.
Herpes simplex. American Academy of Dermatology. http://www.aad.org/skin-conditions/dermatology-a-to-z/herpes-simplex. Accessed February 2016.
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