Document is current
Any future updates will be listed below
-
Authors
Zhang, Xinyu
Ye, Yingfeng
Fu, Chaowei
Dou, Guanshen
Ying, Xiaohua
Qian, Mengcen http://orcid.org/0000-0001-8671-0799
Tang, Shenglan
-
Funding
Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1148464)
- License Information
-
More Information
Article History
Received: 19 December 2019
Accepted: 1 May 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: This study was based on administrative data in the public domain. No human subjects were involved.
: This study does not contain any individual person’s data.
: The authors declare no competing interests.
