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Submitted on: 08 September 2000.
Revised on: 22 October 2000.
Accepted on: 29 October 2000.
REVISTA PERUANA DE BIOLOGIA
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http://reply.papertrans.cn/3/271/27075/27075-24.png
Submitted on: 17 July 2008.
Revised on: 29 July 2008.
Accepted on: 04 August 2008.
REVISTA PERUANA DE BIOLOGIA---UNIV NACIONAL MAYOR DE SAN MARCOS, FACULTYBIOLOGICAL SCIENCES
Submitted on: 15 January 2004.
Revised on: 18 February 2004.
Accepted on: 12 March 2004.
REVISTA PERUANA DE BIOLOGIA---UNIV NACIONAL MAYOR DE SAN MARCOS, FACULTYBIOLOGICAL SCIENCES
Submitted on: 03 April 2011.
Revised on: 29 April 2011.
Accepted on: 23 May 2011.
REVISTA PERUANA DE BIOLOGIA
Submitted on: 25 September 2009.
Revised on: 14 October 2009.
Accepted on: 27 October 2009.
REVISTA PERUANA DE BIOLOGIA---UNIV NACIONAL MAYOR DE SAN MARCOS, FACULTYBIOLOGICAL SCIENCES
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Submitted on: 19 July 2012.
Revised on: 27 July 2012.
Accepted on: 17 August 2012.
REVISTA PERUANA DE BIOLOGIA