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http://reply.papertrans.cn/2/199/19824/19824-32.png
Submitted on: 08 October 2001.
Revised on: 03 November 2001.
Accepted on: 28 November 2001.
___________________JOURNAL OF THE PAKISTAN MEDICAL ASSOCIATION
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http://reply.papertrans.cn/2/199/19824/19824-35.png
Submitted on: 22 May 2015.
Revised on: 13 July 2015.
Accepted on: 10 August 2015.
___________________JOURNAL OF THE PAKISTAN MEDICAL ASSOCIATION