Yasuhiro Nagatomo1, Akira Okayama1, Koichi Murai1, Tomohiro Sasaki1, M Kuroki1, Gen-ichi Tanaka1, Mutsunori Iga1, Kai Yu1, Hironobu Tsubouchi1
1Department of Internal Medicine II, Miyazaki Medical College, 5200 Kihara, Kiyotake, Miyazaki 889-1601, Japan