| Affiliation: | 1. Department of Hematology, Erasmus University Medical Center Cancer Institute, Rotterdam, The Netherlands;;2. Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands;;3. Wilhelmina Children''s Hospital, University Medical Center Utrecht, Utrecht, The Netherlands; and;4. Dutch Childhood Oncology Group, The Hague, The Netherlands;1. Eye Center, Sanno Hospital, Minato-ku, Tokyo, Japan;2. Department of Orthoptics and Visual Science, Kitasato University School of Allied Health Sciences, Minami-ku, Sagamihara City, Kanagawa, Japan |
