Author(s)
Ohta S, Okamoto M, Fujimoto K, Sakamoto N, Takahashi K, Yamamoto H, Kushima H, Ishii H, Akasaka K, Ono J, Kamei A, Azuma Y, Matsumoto H, Yamaguchi Y, Aihara M, Johkoh T, Kawaguchi A, Ichiki M, Sagara H, Kadota JI, Hanaoka M, Hayashi SI, Kohno S, Hoshino T, Izuhara K
