Corresponding author
Kosuke Ishizuka, MD
Department of General Medicine, Chiba University Hospital
1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba pref. Japan
Tel. +81-43-222-7171 (Ext. 6438); +81-43-224-4758 (Direct line)
Fax. +81-43-224-4758
E-Mail: e103007c@yokohama-cu.ac.jp
Number of figures: 2
Number of references: 2