| Affiliation: | (1) Department of Surgery, Sapporo General Hospital of the Japan Self-Defense Forces, 1-12 Hiragishi, Toyohira-ku, Sapporo 062, Japan, JP;(2) Department of Pathology, Sapporo General Hospital of the Japan Self-Defense Forces, 1-12 Hiragishi, Toyohira-ku, Sapporo 062, Japan, JP;(3) Department of Internal Medicine, Sapporo General Hospital of the Japan Self-Defense Forces, 1-12 Hiragishi, Toyohira-ku, Sapporo 062, Japan, JP;(4) Department of Radiology, National Nakatsu Hospital, 173 Ohaza, Shimoikenaga, Nakatsu 871, Japan, JP |
