Submitted on: 16 February 2005.
Revised on: 01 June 2005.
Accepted on: 27 July 2005.
___________________BioPsychoSocial Medicine---BMC
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Submitted on: 13 February 2002.
Revised on: 05 May 2002.
Accepted on: 16 June 2002.
___________________BioPsychoSocial Medicine---BMC
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Submitted on: 24 June 2021.
Revised on: 16 September 2021.
Accepted on: 12 October 2021.
___________________BioPsychoSocial Medicine---BMC
Submitted on: 20 March 1998.
Revised on: 29 May 1998.
Accepted on: 26 July 1998.
___________________BioPsychoSocial Medicine---BMC
Submitted on: 18 August 2004.
Revised on: 25 October 2004.
Accepted on: 11 December 2004.
___________________BioPsychoSocial Medicine---BMC
Submitted on: 02 July 2012.
Revised on: 15 August 2012.
Accepted on: 08 October 2012.
___________________BioPsychoSocial Medicine---BMC
Submitted on: 25 September 2017.
Revised on: 10 January 2018.
Accepted on: 09 March 2018.
___________________BioPsychoSocial Medicine---BMC