Funding for this research was provided by:
National Institutes of Health (HL-126638)
Hunan Development and Reform Commission Foundation of China (1521)
Received: 14 May 2019
Accepted: 7 August 2019
First Online: 14 August 2019
Ethics approval and consent to participate
: Approval was received from the Mayo Clinic Institutional Review Board and authorization for the usage of medical records was obtained.
: It was obtained through authorization of the use of medical records by the patients.
: The authors declare that they have no competing interests.