http://reply.papertrans.cn/2/117/11603/11603-21.png
http://reply.papertrans.cn/2/117/11603/11603-22.png
Submitted on: 29 October 2017.
Revised on: 08 December 2017.
Accepted on: 21 January 2018.
___________________Human Reproduction Open---OXFORD UNIV PRESS
http://reply.papertrans.cn/2/117/11603/11603-24.png
Submitted on: 20 October 2018.
Revised on: 17 February 2019.
Accepted on: 07 March 2019.
___________________Human Reproduction Open---OXFORD UNIV PRESS
http://reply.papertrans.cn/2/117/11603/11603-26.png
http://reply.papertrans.cn/2/117/11603/11603-27.png
http://reply.papertrans.cn/2/117/11603/11603-28.png
Submitted on: 17 February 2012.
Revised on: 12 April 2012.
Accepted on: 04 June 2012.
___________________Human Reproduction Open---OXFORD UNIV PRESS
http://reply.papertrans.cn/2/117/11603/11603-30.png