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Submitted on: 18 March 2004.
Revised on: 22 April 2004.
Accepted on: 28 May 2004.
___________________FAMILY PRACTICE---OXFORD UNIV PRESS
Submitted on: 24 August 2014.
Revised on: 25 November 2014.
Accepted on: 26 December 2014.
___________________FAMILY PRACTICE---OXFORD UNIV PRESS
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Submitted on: 29 October 2008.
Revised on: 21 January 2009.
Accepted on: 19 March 2009.
___________________FAMILY PRACTICE---OXFORD UNIV PRESS
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