Submitted on: 22 August 2013.
Revised on: 23 September 2013.
Accepted on: 26 October 2013.
___________________Journal of Tissue Viability---ELSEVIER SCI LTD
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Submitted on: 24 February 2007.
Revised on: 23 April 2007.
Accepted on: 26 May 2007.
___________________Journal of Tissue Viability---ELSEVIER SCI LTD
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