1. Department of Psychology, University of Hong Kong, Hong Kong.
2. Department of Psychology, Chinese University of Hong Kong, Hong Kong.
3. Department of Children and Women's Health, Osaka University Graduate School of Medicine, Osaka, Japan.
4. Department of Education, Seoul National University, Seoul, Republic of Korea.
5. Department of Psychiatry and Mental Health, Hospital Selayang, Selayang, Malaysia.
6. Department of Psychiatry, National University of Manila, Manila, Philippines.
7. Center for Internet Addiction and Recovery, Bradford, Pennsylvania.
8. Department of Psychological Medicine, National University of Singapore, Singapore.
9. National Information Society Agency, Seoul, Republic of Korea.