[1] Wakayama Kenritsu Ika Daigaku, Wakayama, Japan
[2] Osaka Kokusai Gan Ctr, Osaka, Japan
[3] Kyoto Daigaku, Kyoto, Japan
[4] Osaka Shiritsu Sogo Iryo Ctr, Osaka, Japan
[5] Kobe Daigaku, Kobe, Japan
[6] Osaka Koritsu Daigaku, Osaka, Japan
[7] Osaka Daigaku, Osaka, Japan
[8] Osaka Ika Yakka Daigaku, Osaka, Japan
[9] Igaku Kenkyujo Kitano Byoin, Tokyo, Japan
[10] Japanese Red Cross Osaka Hosp, Osaka, Japan
[11] Tokyo Iryo Hoken Daigaku, Nisseki Wakayama Iryo Ctr, Campus, Tokyo, Japan
[12] Kinki Daigaku, Osaka, Japan
[13] Kyoto Daini Sekijuji Byoin, Kyoto, Japan
[14] Shiritsu Toyonaka Byoin, Toyonaka, Japan
[15] Kita Harima Med Ctr, Ono, Japan
[16] Hyogo Ika Daigaku, Nishinomiya, Japan
[17] Yodogawa Kirisutokyo Byoin, Osaka, Japan
[18] Wakayama Rosai Hosp, Wakayama, Japan
[19] Natl Hosp Org Osaka, Minami Med Ctr, Osaka, Japan
[20] Kansai Ika Daigaku Fuzoku Takii Byoin, Osaka, Japan
[21] Kikkokai Tane Sogo Byoin, Tokyo, Japan
[22] Shakai Iryo Hojin Seitetsu Kinen Hirohata Byoin, Tokyo, Japan