http://reply.papertrans.cn/2/187/18657/18657-31.png
http://reply.papertrans.cn/2/187/18657/18657-32.png
http://reply.papertrans.cn/2/187/18657/18657-33.png
http://reply.papertrans.cn/2/187/18657/18657-34.png
http://reply.papertrans.cn/2/187/18657/18657-35.png
Submitted on: 27 August 2021.
Revised on: 18 October 2021.
Accepted on: 11 November 2021.
___________________Journal of Perinatal Education