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REFbook uses <init> key
}}</ref><ref>{{REFbook
|last=Kong
|first=Xiangrong |init=X |date=2011-02-28 |year=28 February 2011
|title=Longer-term Effects of Male Circumcision on HIV Incidence and Risk Behaviors during Post-trial Surveillance in Rakai, Uganda
|url=http://www.retroconference.org/2011/Abstracts/41239.htm