University Hospital of Cologne, Cologne, NRW, Germany
University Hospital of Cologne, Cologne, NRW, Germany
University of Cologne, Department of General, Visceral and Cancer Surgery, Cologne, Germany
Augenklinik Uniklinik Freiburg, Freiburg, BW, Germany
STZ eyetrial am Department für Augenheilkunde, Tübingen, BW, Germany
Augenklinik Uniklinik Bonn, Bonn, NRW, Germany
University hospital of Cologne, Cologne, NRW, Germany
University Hospital of Cologne, Cologne, NRW, Germany
Heart Center University of Cologne, Cologne, Germany
University Hospital of Cologne, Cologne, NRW, Germany
University Hospital Cologne, Cologne, Germany