1. Department of Ophthalmology, The University of Tokyo Hospital, Tokyo, Japan
2. Department of Ophthalmology, Jichi Medical University Saitama Medical Center, Saitama, Japan
3. Department of Haematology and Oncology, The University of Tokyo Hospital, Tokyo, Japan
4. Department of Ophthalmology, The Cancer Institute Hospital of JFCR, Tokyo, Japan
5. Department of Clinical Laboratory, The University of Tokyo Hospital, Tokyo, Japan
6. Department of Pathology, The University of Tokyo Hospital, Tokyo, Japan