Funding for this research was provided by:
National Basic Research Program of China (973 Program) (2016YFC0901101, 2016YFC1303903)
Key Programme (91543207)
Young Scientists Fund (81502792)
Chinese Government Scholarship (201808420128)
Open Foundation of Hubei Province Key Laboratory of Occupational Hazard Identification and Control (OHIC2017G04)
Text and Data Mining valid from 2019-01-28
Received: 19 November 2018
Accepted: 16 January 2019
First Online: 28 January 2019
Ethics approval and consent to participate
: This study protocol was approved by the Ethnics and Human Subject Committees of Tongji Medical School at the Huazhong University of Science and Technology (2011–17). Written informed consent was received from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.