1. Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science,
2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
2. Department of Ophthalmology, National Hospital Organization Okayama Medical Center,
Okayama, Japan
3. Department of Pathology, Faculty of Medicine, Mansoura University,
Mansoura, Egypt
4. Department of Otolaryngology, Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science,
2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan