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Submitted on: 20 June 2002.
Revised on: 17 October 2002.
Accepted on: 15 December 2002.
___________________BMJ Health & Care Informatics---BMJ PUBLISHING GROUP
Submitted on: 15 November 2022.
Revised on: 06 January 2023.
Accepted on: 24 February 2023.
___________________BMJ Health & Care Informatics---BMJ PUBLISHING GROUP
Submitted on: 16 January 2000.
Revised on: 18 April 2000.
Accepted on: 03 June 2000.
___________________BMJ Health & Care Informatics---BMJ PUBLISHING GROUP
Submitted on: 07 August 2000.
Revised on: 05 December 2000.
Accepted on: 26 January 2001.
___________________BMJ Health & Care Informatics---BMJ PUBLISHING GROUP
Submitted on: 05 October 1999.
Revised on: 04 January 2000.
Accepted on: 20 January 2000.
___________________BMJ Health & Care Informatics---BMJ PUBLISHING GROUP
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Submitted on: 17 January 2014.
Revised on: 26 March 2014.
Accepted on: 05 May 2014.
___________________BMJ Health & Care Informatics---BMJ PUBLISHING GROUP
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