Funding for this research was provided by:
Natural Science Foundation of Beijing Municipality (5182018)
National Science Foundation (III-1526415)
Fundamental Research Funds for the Central Universities & Research projects on biomedical transformation of China-Japan Friendship Hospital (PYBZ1834)
Article History
Received: 20 September 2018
Accepted: 28 November 2019
First Online: 12 December 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.