1. Department of Child and Adolescent Psychiatry Yokohama City University Hospital Yokohama Kanagawa Japan
2. Department of Psychiatry Yokohama City University School of Medicine Kanagawa Japan
3. Department of Prevention, Treatment, and Rehabilitation Promoting Mental Health Tokyo Metropolitan Institute of Medical Science Tokyo Japan
4. Department of Biostatistics Yokohama City University School of Medicine Kanagawa Japan
5. Psychiatric Center Yokohama City University Medical Center Kanagawa Japan
6. Yokohama East Area Habilitation Center for Children Kanagawa Japan
7. Department of Child and Adolescent Psychiatry Kanagawa Children's Medical Center Kanagawa Japan