Funding for this research was provided by:
Fujian Provincial Department of Science and Technology (2015-CXB-48)
Article History
Received: 4 February 2020
Accepted: 19 May 2020
First Online: 8 June 2020
Ethics approval and consent to participate
: All procedures in the study were performed in accordance with the ethical standards of the institutional research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Written and informed consent was obtained from family members or the appropriate responsible parties.
: Not applicable.
: All authors declared that they have no competing interests.