1. Japan Primary Care Association Mental Health Committee Tokyo Japan
2. Kameda Family Clinic Tateyama Chiba Japan
3. Department of Psychosomatic Medicine Tokyu Hospital Tokyo Japan
4. Department of Community Medicine, Kameyama Mie University School of Medicine Tsu Japan
5. Department of General Medicine Mie University Hospital Tsu Japan
6. Centre for Family Medicine Development Japanese Health and Welfare Co‐operative Federation Tokyo Japan
7. Kawasaki Health Co‐operation Kuji Clinic Kawasaki Japan
8. Department of General Internal Medicine Kawasaki Municipal Tama Hospital Kawasaki Japan
9. Department of General Internal Medicine St. Marianna University School of Medicine Kawasaki Japan