Major Professional Experiences (Residency, Internship)
- Associate Professor, Medical Oncology, CHA Bundang Medical Center, CHA University, Gyeonggi-Do, Korea
- Contracting professor, Medical Oncology, Yonsei Cancer Center, Seoul, Korea
- Clinical fellowship Medical Oncology, Yonsei Cancer Center, Seoul Korea
- Public Health Doctor, National Mokpo Hospital, Jeollanam-do, Korea (as Military Service)
- Residency in Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Internship in Asan Medical Center, Seoul, Korea