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Submitted on: 20 February 2011.
Revised on: 05 June 2011.
Accepted on: 18 June 2011.
___________________Acta Orthopaedica---MEDICAL JOURNAL SWEDEN AB
Submitted on: 08 July 1998.
Revised on: 24 September 1998.
Accepted on: 01 November 1998.
___________________Acta Orthopaedica---MEDICAL JOURNAL SWEDEN AB
Submitted on: 18 April 2015.
Revised on: 05 July 2015.
Accepted on: 08 August 2015.
___________________Acta Orthopaedica---MEDICAL JOURNAL SWEDEN AB
Submitted on: 24 October 2010.
Revised on: 18 January 2011.
Accepted on: 18 March 2011.
___________________Acta Orthopaedica---MEDICAL JOURNAL SWEDEN AB
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Submitted on: 11 March 2000.
Revised on: 17 June 2000.
Accepted on: 09 August 2000.
___________________Acta Orthopaedica---MEDICAL JOURNAL SWEDEN AB
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