Funding for this research was provided by:
National Natural Science Foundation of China (81970028)
National Science and Technology Planning Project (81641153)
Natural Science Foundation of Tianjin Municipal Science and Technology Commission (7173273)
Article History
Received: 15 February 2020
Accepted: 30 July 2020
First Online: 18 August 2020
Ethics approval and consent to participate
: This study was carried out in accordance with the recommendations of the Ethics Committee of Peking University Third Hospital with written informed consent from all subjects. All subjects gave written informed consent in accordance with the Declaration of Helsinki. The protocol was approved by the Ethics Committee of Peking University Third Hospital (#196–03).
: Not applicable.
: The authors declare that they have no competing interests.