Department of Internal Medicine, Osaka Medical College, Osaka
Akira Ohbayashi & Yuji Matsuo
Third Division, Department of Internal Medicine, Niigata University, Niigata
Teruo Sekine & Keiji Fujita
Department of Internal Medicine, Faculty of Medicine, Shinshu University, Matsumolo, Nagano Prefecture
Seiichi Furuta & Yoshihiro Akahane
Inst. Virus Res., Kyoto Univ., Kkyoto
Shiro Suzuki & Kensuke Miura
Third Department of Medicine, Tohoku University School of Medicine and Department of Bacteriology, Sendai
K. Wakui, M. Otsuki, H. Suzuki, T. Sugawara, H. Ohori & N. Ishida
First Department of Internal Medicine, Gifu University School of Medicine, Gifu
Mineo Kojima & Masaaki Kametani