Submitted on: 03 September 2007.
Revised on: 21 September 2007.
Accepted on: 19 October 2007.
Medical-Surgical Journal-Revista Medico-Chirurgicala
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Submitted on: 30 December 2014.
Revised on: 20 January 2015.
Accepted on: 03 February 2015.
Medical-Surgical Journal-Revista Medico-Chirurgicala
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Submitted on: 19 March 2007.
Revised on: 17 April 2007.
Accepted on: 06 May 2007.
Medical-Surgical Journal-Revista Medico-Chirurgicala
Submitted on: 24 October 2020.
Revised on: 12 November 2020.
Accepted on: 18 November 2020.
Medical-Surgical Journal-Revista Medico-Chirurgicala
Submitted on: 03 April 2001.
Revised on: 06 May 2001.
Accepted on: 02 June 2001.
Medical-Surgical Journal-Revista Medico-Chirurgicala
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http://reply.papertrans.cn/3/217/21673/21673-19.png
Submitted on: 30 November 2004.
Revised on: 26 December 2004.
Accepted on: 04 January 2005.
Medical-Surgical Journal-Revista Medico-Chirurgicala