1. Department of Gastroenterology, Hyogo College of Medicine, Nishinomiya, 663-8501, Japan
2. Laboratory of Host Defenses, Institute for Advanced Medical Sciences, Hyogo College of Medicine, Nishinomiya, 663-8501, Japan
3. First Department of Pathology, Hyogo College of Medicine, Nishinomiya, 663-8501, Japan
4. Department of Ophthalmology, Hyogo College of Medicine, Nishinomiya, 663-8501, Japan