1. Department of Respiratory Medicine, Hamamatsu Rosai Hospital, Shizuoka, Japan
2. Department of Gastrointestinal Surgery, Hamamatsu Rosai Hospital, Shizuoka, Japan
3. Department of Dermatology, Hamamatsu Rosai Hospital, Shizuoka, Japan
4. Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan.