Submitted on: 24 January 2013.
Revised on: 01 February 2013.
Accepted on: 24 February 2013.
OBSTETRICS AND GYNECOLOGY---LIPPINCOTT WILLIAMS & WILKINS
Submitted on: 18 June 2007.
Revised on: 15 July 2007.
Accepted on: 02 August 2007.
OBSTETRICS AND GYNECOLOGY---LIPPINCOTT WILLIAMS & WILKINS
Submitted on: 08 January 2009.
Revised on: 24 January 2009.
Accepted on: 17 February 2009.
OBSTETRICS AND GYNECOLOGY
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http://reply.papertrans.cn/3/236/23507/23507-25.png
Submitted on: 16 May 1998.
Revised on: 17 June 1998.
Accepted on: 10 July 1998.
OBSTETRICS AND GYNECOLOGY
Submitted on: 21 April 2009.
Revised on: 12 May 2009.
Accepted on: 29 May 2009.
OBSTETRICS AND GYNECOLOGY---LIPPINCOTT WILLIAMS & WILKINS
Submitted on: 20 April 2003.
Revised on: 28 May 2003.
Accepted on: 13 June 2003.
OBSTETRICS AND GYNECOLOGY
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Submitted on: 04 January 2013.
Revised on: 25 January 2013.
Accepted on: 29 January 2013.
OBSTETRICS AND GYNECOLOGY---LIPPINCOTT WILLIAMS & WILKINS