1. Department of Internal Medicine, Yao Tokushukai General Hospital, Yao city, Osaka, Japan
2. Department of Dermatology, Yao Tokushukai General Hospital, Yao city, Osaka, Japan
3. Department of Otolaryngology, Yao Tokushukai General Hospital, Yao city, Osaka, Japan
4. Department of Pathology, Yao Tokushukai General Hospital, Yao city, Osaka, Japan