1. Department of Child and Adolescent Psychiatry, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, Japan.
2. Department of Psychiatry, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
3. Department of Clinical psychology, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, Japan.
4. Clinical Center of Children's Mental Health, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, Japan.
5. Department of Social worker, Kohnodai Hospital, National Center for Global Health and Medicine, Chiba, Japan.
6. Department of Psychiatry, Kansai Rosai Hospital, hyogo, Japan.
7. Department of Psychiatry, Narimasu Kosei Hospital, Tokyo, Japan.
8. Department of Psychiatry, Komagino Hospital, Tokyo, Japan.