1. Department of Ophthalmology and Visual Science, Graduate School of Biomedical Sciences Hiroshima University Hiroshima 734‐8551 Japan
2. Faculty of Medicine Hasanuddin University Makassar South Sulawesi 90245 Indonesia
3. Department of Clinical Support Hiroshima University Hospital Hiroshima 734‐8551 Japan
4. Department of Virology, Graduate School of Biomedical Sciences Hiroshima University Hiroshima 734‐8551 Japan