Submitted on: 05 December 2018.
Revised on: 11 January 2019.
Accepted on: 10 March 2019.
___________________EUROPEAN JOURNAL OF PAIN---WILEY
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Submitted on: 18 November 2014.
Revised on: 22 January 2015.
Accepted on: 05 February 2015.
___________________EUROPEAN JOURNAL OF PAIN---WILEY
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Submitted on: 04 October 1999.
Revised on: 30 December 1999.
Accepted on: 12 February 2000.
___________________EUROPEAN JOURNAL OF PAIN---WILEY
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