1. a Faculty of Agriculture , Miyazaki University , Gakuen-Kibanadai, Miyazaki, 889-2155
2. b Kikuchi Research Center , The Chemo-Sero-Therapeutic Research Institute , 1314 Nishioki, Kawabe, Kyokushi, Kikuchi, Kumamoto, 869-1298
3. c Faculty of Agriculture , Kagoshima University , 1-21-24 Korimoto, Kagoshima, 890-0065
4. d Faculty of Agriculture , Tottori University , 4-101 Koyama-Minami, Tottori, 680-8553