http://reply.papertrans.cn/2/187/18661/18661-21.png
Submitted on: 07 January 2018.
Revised on: 09 February 2018.
Accepted on: 08 March 2018.
___________________Journal of Perinatology---SPRINGERNATURE
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Submitted on: 19 September 2021.
Revised on: 13 January 2022.
Accepted on: 05 February 2022.
___________________Journal of Perinatology---SPRINGERNATURE
Submitted on: 22 July 2003.
Revised on: 08 September 2003.
Accepted on: 22 September 2003.
___________________Journal of Perinatology---SPRINGERNATURE
http://reply.papertrans.cn/2/187/18661/18661-26.png
http://reply.papertrans.cn/2/187/18661/18661-27.png
Submitted on: 23 June 1999.
Revised on: 07 September 1999.
Accepted on: 06 November 1999.
___________________Journal of Perinatology---SPRINGERNATURE
Submitted on: 16 April 2008.
Revised on: 03 July 2008.
Accepted on: 11 August 2008.
___________________Journal of Perinatology---SPRINGERNATURE
Submitted on: 18 November 2018.
Revised on: 21 December 2018.
Accepted on: 15 February 2019.
___________________Journal of Perinatology---SPRINGERNATURE