Submitted on: 31 August 2010.
Revised on: 11 October 2010.
Accepted on: 02 November 2010.
OBSTETRICAL & GYNECOLOGICAL SURVEY
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Submitted on: 05 July 2009.
Revised on: 30 July 2009.
Accepted on: 26 August 2009.
OBSTETRICAL & GYNECOLOGICAL SURVEY
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Submitted on: 04 June 2007.
Revised on: 14 June 2007.
Accepted on: 09 July 2007.
OBSTETRICAL & GYNECOLOGICAL SURVEY
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http://reply.papertrans.cn/3/236/23504/23504-27.png
Submitted on: 13 August 2020.
Revised on: 13 September 2020.
Accepted on: 05 October 2020.
OBSTETRICAL & GYNECOLOGICAL SURVEY
Submitted on: 10 December 2007.
Revised on: 18 January 2008.
Accepted on: 09 February 2008.
OBSTETRICAL & GYNECOLOGICAL SURVEY
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