Submitted on: 11 November 2013.
Revised on: 08 March 2014.
Accepted on: 01 May 2014.
___________________CIRCULATION RESEARCH---LIPPINCOTT WILLIAMS & WILKINS
Submitted on: 24 August 2010.
Revised on: 13 November 2010.
Accepted on: 08 January 2011.
___________________CIRCULATION RESEARCH---LIPPINCOTT WILLIAMS & WILKINS
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Submitted on: 13 April 2006.
Revised on: 26 May 2006.
Accepted on: 25 June 2006.
___________________CIRCULATION RESEARCH---LIPPINCOTT WILLIAMS & WILKINS
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