University Hospital Frankfurt, Frankfurt, Germany
University Hospital Bonn, Bonn, Germany
Research Center Borstel, Borstel, Germany
University Hospital of Cologne, Cologne, Germany
University Hospital Cologne, Cologne, NRW, Germany
University Hospital Cologne, Cologne, Germany
Department II of Internal Medicine,University of Cologne, Cologne, Germany
Department of Ophthalmology, Aarhus University Hospital, Aarhus N, Midtjylland, Denmark
Klinik für Ophthalmologie des Universitätsklinikums Köln, Köln, NRW, Germany
Radboud-Universität Nijmegen, Nijmegen, Gelderland, Netherlands
University Hospital Cologne, Cologne, North Rhine-Westphalia, Germany
Universitätsklinikum Köln, Centrum für Integrierte Onkologie (CIO), Cologne, NRW, Germany