1. Department of Internal Medicine, Grand Hôpital de Charleroi, Charleroi, Belgium
2. Department of Internal Medicine, Croix-Rousse University Hospital, Lyon, France
3. Claude Bernard Lyon 1 University, Lyon, France
4. Department of Ophthalmology, Croix-Rousse University Hospital, Lyon, France
5. Department of Hematology, Lyon Sud University Hospital, Lyon, France