1. Clinical Trial Center, Dongguk University Ilsan Hospital, Dongguk University School of Medicine, Seoul, Republic of Korea;
2. Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University School of Medicine, Seoul, Republic of Korea;
3. Department of Hematology and Medical Oncology, Dongguk University Ilsan Hospital, Dongguk University School of Medicine, Seoul, Republic of Korea;
4. Department of Internal Medicine Dongguk University School of Medicine, Gyeongju, Republic of Korea;
5. W Maurice Young Center for Applied Ethics, University of British Columbia, Vancouver, Canada