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|ref=<ref>[http://www.nytimes.com/2011/09/27/health/27circumcision.html?pagewanted=all Pam Belluck. (2011-09-26). Obstacles Slow an Easy Way to Prevent H.I.V. in Men. "NY Times."]</ref>
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{{SEEALSO}}
* [[Bias]]
{{REF}}