Submitted on: 08 January 2011.
Revised on: 29 January 2011.
Accepted on: 28 February 2011.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
Submitted on: 30 September 2015.
Revised on: 26 January 2016.
Accepted on: 18 March 2016.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
Submitted on: 01 December 2008.
Revised on: 30 December 2008.
Accepted on: 08 February 2009.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
Submitted on: 05 March 2012.
Revised on: 20 April 2012.
Accepted on: 07 June 2012.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
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Submitted on: 08 January 2010.
Revised on: 19 April 2010.
Accepted on: 15 May 2010.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
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Submitted on: 22 February 2013.
Revised on: 28 April 2013.
Accepted on: 25 May 2013.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
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Submitted on: 01 August 2004.
Revised on: 02 November 2004.
Accepted on: 27 November 2004.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT