1. From Experimental Vitreoretinal Surgery, and the2Steinbeis Transfer Centre for Pathology and Toxicology of the Eye, Tu¨bingen, Germany; and
2. Centre of Ophthalmology, University Eye Hospital, Tu¨bingen, Germany; the
3. From Experimental Vitreoretinal Surgery, and the
4. Institute of Anatomy, University of Tu¨bingen, Tu¨bingen, Germany; the
5. Covance Laboratories, Mu¨nster, Germany.