摘要
The article China fertility report,2006-2016,written by Dan He,Xuying Zhang,Ya’er Zhuang,Zhili Wang,Yu Jiang,was originally published electronically in SpringerLink on 25 January without Open Access.With the author(s)’decision to opt for Open Choice the copyright of the article changed on 25 January 2019 to©The Author(s)2019 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License(http://creativecommons.org/licenses/by/4.0/),which permits use,duplication,adaptation,distribution and reproduction in any medium or format,as long as you give appropriate credit to the original author(s)and the source,provide a link to the Creative Commons license,and indicate if changes were made.
