Funding for this research was provided by:
Natural Science Foundation of Fujian Province (2015J01529, 2016J01626, 2015J01540)
Major Special Projects for Serious Illness of Xiamen (3502Z20179045)
Medical Innovation Program (2020-CXB-047, 2012-CXB-34)
Received: 6 April 2020
Accepted: 28 February 2021
First Online: 18 March 2021
: This study was approved by the Ethical Committee of Zhongshan Hospital, Xiamen University after formal hearing, and in conforms with the Declaration of Helsinki. The written consent has been presented to every study participant for reviewing before their operation. In the consent, the detailed purpose of this study, the sample collection procedure, possible risk, confidentiality of patients’ personal information, and the right to withdraw in any stage were clearly elaborated. All patients provided physically signed the written consent before sample collection.
: Not applicable.
: The authors declare that they have no competing interests to declare.