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9
The Body website, www.thebody.com/content/art6036.html (accessed September 5, 2010).
10
Travis I. Lovejoy et al. Patterns and Correlates of Sexual Activity and Condom Use Behavior in Persons 50-Plus Years of Age Living with HIV/AIDS, AIDS and Behavior 12, no. 6 (2008): 943–956.
11
Centers for Disease Control and Prevention website, www.cdc.gov/hiv/topics/over50/challenges.htm (accessed September 5, 2010).
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