[1
]Division of Cardiology, Saiseikai Fukuoka General Hospital, Fukuoka, Japan
[2
]Division of Cardiology, Teikyo University Hospital, Tokyo, Japan
[3
]Division of General Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
[4
]Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine,
Kyoto, Japan