1. Outpatient Clinic for Anxiety Disorders; Akasaka Mental Clinic; Tokyo; Japan
2. Department of Neuropsychiatry; Graduate School of Medicine; University of Tokyo; Tokyo; Japan
3. School of Psychological Science; Health Sciences University of Hokkaido; Hokkaido; Japan
4. School of Psychology; Flinders University of South Australia; Adelaide; Australia
5. Faculty of Human Sciences; Waseda University; Saitama; Japan
6. Tokyo Metropolitan Matsuzawa Hospital; Tokyo; Japan