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Submitted on: 10 August 2003.
Revised on: 12 November 2003.
Accepted on: 08 January 2004.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
Submitted on: 28 April 2000.
Revised on: 01 August 2000.
Accepted on: 26 September 2000.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
Submitted on: 14 November 2000.
Revised on: 28 January 2001.
Accepted on: 07 March 2001.
___________________JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
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