Funding for this research was provided by:
National Natural Science Foundation of China (81470021)
National Natural Science Foundation of China (81800364)
Key Project of Cultivating Young Talent in Fujian provincial health and family planning commission (2016-ZQN-8)
high-level hospital foster grants from Fujian Provincial Hospital, Fujian province ,China.
Article History
Received: 15 January 2020
Accepted: 24 May 2020
First Online: 5 June 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Fujian Provincal Hospital (K2016–01-001, Fujian,China). The patients and/or guardians signed an informed consent.
: Not applicable.
: The authors declare that they have no competing interests.