1. College of Medicine, University of Oklahoma, Oklahoma City, OK, USA
2. Dean McGee Eye Institute, University of Oklahoma, Oklahoma City, OK, USA
3. Great Lakes Eye Care, St. Joseph, MI, USA
4. Eye Center, Medical Center, University of Freiburg, Freiburg, Germany
5. Faculty of Medicine, University of Freiburg, Freiburg, Germany
6. Institute of Experimental Ophthalmology, Saarland University, Homburg, Germany
7. Department for Ophthalmology and Optometry, Kepler University Hospital, Linz, Austria
8. Institut für Refraktive und Ophthalmo-Chirurgie (IROC), Zurich, Switzerland