1. Department of Ophthalmology, HFR Fribourg, Cantonal Hospital, University of Fribourg, Fribourg, Switzerland
2. Department of Ophthalmology, Jules-Gonin Eye Hospital, FAA, University of Lausanne, Lausanne, Switzerland
3. Department of Hematology and Oncology, HFR Fribourg, Cantonal Hospital, University of Fribourg, Fribourg, Switzerland
4. Department of Oncology, Radiation Oncology Service, CHUV, University of Lausanne, Lausanne, Switzerland