1 Radia Ind. Co. Ltd., 168 Ooyagi, Takasaki, Gunma, 370, Japan 2 National Inst. Health Sci., Japan 3 Tokyo Metro. Ind. Tech. Res. Inst., Japan 4 Koka Lab., Japan Radio Isotope Assoc., Japan 5 Akita Sumitomo Bakelite Co. Ltd., Japan 6 Asahi Medical Co. Ltd., Japan 7 Kawasumi Lab. Inc., Japan 8 Japan Irradi. Service Co. Ltd., Japan 9 Terumpo Corp., Japan 10 Toraday Ind. Inc., Japan 11 Nikkiso Co. Ltd., Japan 12 Nippon Sherwood Medical Ind. Ltd., Japan 13 J.M.S. Corp., Japan 14 Nissho Corp., Japan 15 Microbiology Dept., Univ. of Western Ontario, Canada |