1. Department of Ophthalmology and Visual Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
2. Department of Ophthalmology, Miyoshi Central Hospital, Hiroshima, Japan
3. Department of Haematology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
4. Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan
5. Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan