1. Department of Preventive Medicine, College of Medicine, Ewha Womans University, Seoul, Korea.
2. Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, Korea.
3. Department of Preventive and Management, Inha University School of Medicine, Incheon, Korea.
4. National Cancer Control Institute, National Cancer Center, Goyang, Korea.
5. Advanced Biomedical Research Institute, Ewha Womans University Seoul Hospital, Seoul, Korea.
6. Center of Public Healthcare, National Medical Center, Seoul, Korea.
7. Department of Emergency Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea.