[1] Keio Univ, Sch Med, Dept Cardiol, Tokyo, Japan
[2] Keio Univ, Sch Med, Dept Neuropsychiat, Tokyo, Japan
[3] Keio Univ, Sch Med, Inst Integrated Sports Med, Tokyo, Japan
[4] Kyorin Univ, Fac Med, Dept Cardiovasc Med, Tokyo, Japan
[5] Kyorin Univ, Fac Med, Dept Cardiovasc Med, 6-20-2 Shinkawa, Mitaka, Tokyo, Japan