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Submitted on: 21 November 2020.
Revised on: 17 December 2020.
Accepted on: 29 December 2020.
___________________BMC Rheumatology---SPRINGERNATURE
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Submitted on: 27 October 2016.
Revised on: 06 January 2017.
Accepted on: 27 January 2017.
___________________BMC Rheumatology---SPRINGERNATURE
Submitted on: 13 January 2001.
Revised on: 07 April 2001.
Accepted on: 31 May 2001.
___________________BMC Rheumatology---SPRINGERNATURE
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Submitted on: 17 March 2003.
Revised on: 25 May 2003.
Accepted on: 18 July 2003.
___________________BMC Rheumatology---SPRINGERNATURE
Submitted on: 10 July 2018.
Revised on: 14 August 2018.
Accepted on: 06 October 2018.
___________________BMC Rheumatology---SPRINGERNATURE