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Authors
Smith, A J
Malan, L
Uys, A S
Malan, N T
Harvey, B H
Ziemssen, T
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Article History
Received: 25 October 2013
Revised: 25 March 2014
Accepted: 2 April 2014
First Online: 5 June 2014
Competing interests
: The authors declare no conflict of interest.
