1. Kobe Gakuin University, Kobe 651–2180, Japan
2. Faculty of Health & Nutrition, Osaka Shoin Women's University, Osaka 577–8550, Japan
3. School of Economics, University of Hyogo, Kobe 651–2197, Japan
4. Clinical Department of General Internal Medicine, Kobe University Hospital, Kobe 650–0017, Japan
5. Department of Cardiovascular Medicine, Kobe Rosai Hospital, Kobe 651–0053, Japan
6. KellSa s.a.s. Str. Campo e Zampo 12, I-13900 Biella, BI, Italy