Affiliation: | (1) 2nd Department of Internal Medicine, Tokyo Medical and Dental University, School of Medicine, 5-45, Yushima 1 chome, Bunkyo-ku, Tokyo 113, Japan;(2) the Department of Radiology, Tokyo Medical and Dental University, School of Medicine, 5-45, Yushima 1 chome, Bunkyo-ku, Tokyo 113, Japan;(3) Nakano General Hospital, Tokyo, Japan |