Affiliation: | (1) Institute of Immunological Science, Hokkaido University, Kita-15, Nishi-7, Kita-ku, 060 Sapporo, Japan;(2) Hokkaido Red Cross Center, Japanese Red Cross, Sapporo, Japan;(3) Japanese Red Cross Central Blood Center, Tokyo, Japan;(4) Tokyo Institute of Psychiatry, Tokyo, Japan |