Submitted on: 26 January 2004.
Revised on: 14 April 2004.
Accepted on: 11 June 2004.
___________________Journal of Obstetrics and Gynaecology Canada
Submitted on: 24 June 2001.
Revised on: 18 October 2001.
Accepted on: 28 November 2001.
___________________Journal of Obstetrics and Gynaecology Canada
Submitted on: 17 August 1998.
Revised on: 02 October 1998.
Accepted on: 13 November 1998.
___________________Journal of Obstetrics and Gynaecology Canada
Submitted on: 24 May 2001.
Revised on: 02 August 2001.
Accepted on: 16 September 2001.
___________________Journal of Obstetrics and Gynaecology Canada
Submitted on: 10 August 2000.
Revised on: 26 November 2000.
Accepted on: 07 January 2001.
___________________Journal of Obstetrics and Gynaecology Canada
Submitted on: 11 October 1998.
Revised on: 06 November 1998.
Accepted on: 01 December 1998.
___________________Journal of Obstetrics and Gynaecology Canada
http://reply.papertrans.cn/2/185/18414/18414-17.png
Submitted on: 19 October 2014.
Revised on: 14 February 2015.
Accepted on: 14 April 2015.
___________________Journal of Obstetrics and Gynaecology Canada
Submitted on: 05 February 2012.
Revised on: 03 June 2012.
Accepted on: 21 June 2012.
___________________Journal of Obstetrics and Gynaecology Canada
Submitted on: 08 November 2000.
Revised on: 15 February 2001.
Accepted on: 01 March 2001.
___________________Journal of Obstetrics and Gynaecology Canada