Table 3.

Participating centers and investigators

Center	Investigators
Hokko Memorial Clinic	Ichiro Sakuma, MD, PhD
Tomishiro Central Hospital	Osamu Arasaki, MD
Sunagawa Medical Clinic	Hiroshi Sunagawa, MD
Imari Arita Kyoritsu Hospital	Kazuo Matsunaga, MD, PhD
Oohama Daiichi Hospital	Ryu Takahashi, MD, PhD
Chibana Clinic	Isao Shiroma, MD
Northern Okinawa Cardiovascular Center	Kinya Ashida, MD
Baba Memorial Hospital	Hajime Yamashita, MD, PhD
JR Hiroshima Hospital	Hiroki Teragawa, MD, PhD
Kusatsu General Hospital	Atsuyuki Wada, MD, PhD
Shonan Hospital	Ken Nakachi, MD, PhD
Fukuoka University Hospital	Takashi Nomiyama, MD, PhD
Saiseikai Fukuoka General Hospital	Toru Kubota, MD, PhD
Urasoe General Hospital	Hiroki Uehara, MD
Naha City Hospital	Tomohiro Asahi, MD, PhD
Kokura Memorial Hospital	Takashi Morinaga, MD
Tokushima University Hospital	Masataka Sata, MD, PhD