1. From the Department of Ophthalmology, Omiya Medical Center, Jichi Medical School, Saitama, Japan; the
2. Departments of Corneal Tissue Regeneration and
3. Department of Ophthalmology, Jichi Medical School, Tochigi, Japan; and
4. Ophthalmology, Tokyo University Graduate School of Medicine, Tokyo, Japan; the
5. Miyata Eye Hospital, Miyakonojo, Miyazaki, Japan.