http://reply.papertrans.cn/2/186/18591/18591-31.png
Submitted on: 18 April 2012.
Revised on: 03 June 2012.
Accepted on: 21 July 2012.
___________________Journal of Pediatric and Adolescent Gynecology
http://reply.papertrans.cn/2/186/18591/18591-33.png
Submitted on: 22 December 1998.
Revised on: 08 April 1999.
Accepted on: 02 June 1999.
___________________Journal of Pediatric and Adolescent Gynecology
http://reply.papertrans.cn/2/186/18591/18591-35.png
http://reply.papertrans.cn/2/186/18591/18591-36.png