1. From the Department of Immunohematology and Blood Transfusion, Division of Molecular Biology, and the
2. Departments of Dermatology and
3. Ophthalmology, Leiden University Medical Center, Leiden, The Netherlands; and the
4. From the Department of Immunohematology and Blood Transfusion, Division of Molecular Biology, and the4Department of Pathology, Vrije Universiteit Medical Center, Amsterdam, The Netherlands.