Received: 26 July 2020
Accepted: 26 February 2021
First Online: 15 March 2021
: The study was conducted in accordance with the ethical principles that have their origins in the Declaration of Helsinki. All enrolled patients provided written informed consent prior to undergoing any study-related procedure. The study protocol and relevant documentation were approved by Institutional Review Board/independent ethics committee(s) of all 66 study sites. The list of sites is included as supplementary material (Additional file InternalRef removed).
: Not applicable.
: AJM received honoraria for lectures from A. Menarini. SWP is an employee of A. Menarini Korea Ltd. KIC, DWJ, HSA, DKJ, HSL, JYL, HSL, and SWR declare that they have no competing interests.