1. Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
2. VA Portland Health Care System, HSR&D Center to Improve Veteran Involvement in Care, Portland, OR, USA
3. Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
4. School of Public Health, Oregon Health & Science University and Portland State University, Portland, OR, USA