Takanobu Hirosawa
Division of Internal Medicine, Okinawa Chubu Hospital, 281 Miyazato, Uruma, Okinawa, Japan
Kazuhito Hirata
Division of Internal Medicine, Okinawa Chubu Hospital, 281 Miyazato, Uruma, Okinawa, Japan
Wake Minoru
Division of Cardiology, Okinawa Chubu Hospital, 281 Miyazato, Uruma, Okinawa, Japan