Institution: | (1) Gene Research Center, University of the Ryukyus, Chihara 1, Nishihara-cho, Okinawa 903-0213, Japan, JP;(2) Division of Radiological Protection and Biology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-0052, Japan, JP;(3) Laboratory of Epidemiology, AIDS Research Center and Committee in Research Information Laboratory, National Institute of Infectious Disease, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-0052, Japan, JP |