Funding for this research was provided by:
Text and Data Mining valid from 2019-08-14
Received: 31 July 2019
Accepted: 2 August 2019
First Online: 14 August 2019
Ethics approval and consent to participate
: This study was reviewed and has been granted an exemption from requiring ethics approval by the Institutional Review Board (IRB) of Pusan National University (IRB number: 201604HR). The authors obtained all necessary administrative permission to access the data prior to conducting this study. Patient information was anonymized and de-identified by the Health Insurance Review and Assessment Service according to Korean privacy law. The requirement for informed consent was not required because data used in this study were all anonymized and un-identifiable.
: Not Applicable.
: Qian, Zhao, Rane are employees of Amgen Inc. and own stocks in the company. Fox has received consulting fees from Amgen Inc. Suh, H Kim, S Kim, and Han received research grants from National Research Foundation, Ministry of Health and Welfare, Korea Health Industry Development Institute, Pfizer Korea, Amgen Korea, Ipsen Korea, Handok-Teva, and Amgen Inc.