1. Dept. of Human ICT Convergence, Sungkyunkwan University, Suwon, South Korea
2. Dept. of Human ICT Convergence, Sungkyunkwan University Suwon, South Korea
3. Clinical Behavior & Psycho-social Science, Sungkyunkwan Univ., Seoul, South Korea
4. Family Medicine, Sungkyunkwan Univ., Seoul, South Korea
5. School of Games, Hongik Univ., Sejong, South Korea
6. Human ICT Convergence, Sungkyunkwan Univ., Suwon, South Korea