Affiliation: | Department of Molecular Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160;Pathology Division, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104;Division of Cancer Biology and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland 20205, USA |