Centre Medical Le Mesnil, Quebec, Canada
CHU de Québec, Hôpital de l'Enfant-Jésus, Quebec, Canada
Clinique Neuro-Rive Sud, Greenfield Park, Quebec, Canada
Klinik 34, Göteburg, Sweden
Akademikliniken 10, Stockholm, Sweden
Malteser Krankenhaus, Bonn, Germany
Akademikliniken 10, Stockholm, Sweden
Praxisklinik Siepe Friedrichstraße 57, Bonn, Germany
Virginia Eye Consultants, Norfolk, Virginia, United States
Ophthalmic Consultants Long Island, Rockville Centre, New York, United States
Wohl Eye Center, Bloomingdale, Illinois, United States