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Submitted on: 14 February 2001.
Revised on: 14 March 2001.
Accepted on: 08 May 2001.
___________________BRITISH JOURNAL OF PSYCHIATRY---CAMBRIDGE UNIV PRESS
Submitted on: 05 September 2011.
Revised on: 08 December 2011.
Accepted on: 17 January 2012.
___________________BRITISH JOURNAL OF PSYCHIATRY---CAMBRIDGE UNIV PRESS
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Submitted on: 30 November 2004.
Revised on: 09 March 2005.
Accepted on: 20 April 2005.
___________________BRITISH JOURNAL OF PSYCHIATRY---CAMBRIDGE UNIV PRESS
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