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Submitted on: 29 September 2004.
Revised on: 08 January 2005.
Accepted on: 26 January 2005.
___________________AMERICAN JOURNAL OF INFECTION CONTROL
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Submitted on: 09 January 2002.
Revised on: 15 March 2002.
Accepted on: 25 April 2002.
___________________AMERICAN JOURNAL OF INFECTION CONTROL
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