Submitted on: 22 May 2009.
Revised on: 01 June 2009.
Accepted on: 10 June 2009.
Nigerian Journal of Clinical Practice
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http://reply.papertrans.cn/3/232/23156/23156-33.png
Submitted on: 06 May 2015.
Revised on: 21 May 2015.
Accepted on: 12 June 2015.
Nigerian Journal of Clinical Practice
Submitted on: 31 August 2016.
Revised on: 22 September 2016.
Accepted on: 17 October 2016.
Nigerian Journal of Clinical Practice
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