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Submitted on: 07 February 2008.
Revised on: 25 February 2008.
Accepted on: 07 March 2008.
SOUTH AFRICAN JOURNAL OF SURGERY
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Submitted on: 03 November 2008.
Revised on: 24 November 2008.
Accepted on: 19 December 2008.
SOUTH AFRICAN JOURNAL OF SURGERY
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