Affiliation: | 1. Department of Radiobiology, Radiation Effects Research Foundation, 5-2, Hijiyama Park, Minami-Ku, Hiroshima 732, Japan;2. Department of Genetics, Radiation Effects Research Foundation, 5-2, Hijiyama Park, Minami-Ku, Hiroshima 732, Japan;3. Institute of Rheumatology, Tokyo Women''s Medical College, Box 116, NS BLD., 2-4-1, Hishi-Shinjuku, Shinjuku-ku, Tokyo, 163 Japan |