Received: 18 March 2020
Accepted: 28 July 2020
First Online: 17 August 2020
Ethics approval and consent to participate
: The study was approved by the local Institutional Review Board (approval numbers, 3960705; 0123-16-EMC). A written informed consent was obtained from all participants in the original cohort.
: All the results in this article have no personally identifiable information.
: The authors have declared that they have no competing interests.