1. Department of General Medicine and Primary Care, Faculty of Medicine, University of Tsukuba Hospital, Tsukuba, Japan
2. Department of Adult Health and Psychiatric Nursing, Faculty of Mie University, Tsu, Japan
3. Department of Education and Research in Family and Community Medicine, Mie University, Tsu, Japan
4. Department of General Medicine and Primary Care, University of Mie Hospital, Tsu, Japan
5. Department of Contemporary Sociology, School of Sociology, Bukkyo University, Kyoto, Japan
6. Graduate School of Nursing, Miyagi University, Sendai, Japan