Funding for this research was provided by:
National Natural Science Foundation of China (81771230, 81322017, U1505222)
Program for New Century Excellent Talents in University (NCET-13-0736)
Startup Fund for scientific research, Fujian Medical University (2017XQ1072)
National Key Clinical Specialty Discipline Construction Program
Key Clinical Specialty Discipline Construction Program of Fujian
Text and Data Mining valid from 2018-07-06
Received: 13 November 2017
Accepted: 26 June 2018
First Online: 6 July 2018
Ethics approval and consent to participate
: Informed written consents were obtained from all the participants. This study was approved by the Ethics Committee of the First Affiliated Hospital of Fujian Medical University (FYYY2006–01–19-01).
: 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.