Choi, Yoon Jin
Shin, Dong Wook
Jang, Wooyoung
Lee, Dong Ho
Jeong, Su-Min
Park, Sanghyun
Han, Kyung-do
Park, Yong Gyu
Article History
Received: 8 July 2019
First Online: 11 October 2019
Disclosure
: No authors have conflicts of interest to report.
: The research committee of Helsinki University Hospital approved our study plan. Obtaining consent was not needed in our register-based study, because we did not contact any study patients or their caregivers.