Received: 4 June 2021
Accepted: 2 September 2021
First Online: 18 October 2021
: The study protocol was approved by “Samsung Medical Center” Ethics Committee (approval no. 2016-03-130, April 06, 2016) and by the local ethics committee of all the study centers.
: The author hereby grants the publisher permission to publish the work.
: The authors declare that they have no competing interests.