1. Department of Internal Medicine I, Clinical Immunology and Infectious Diseases, Medical University of Innsbruck, Innsbruck, Austria;
2. Department of Internal Medicine, General Hospital Oberndorf, Oberndorf, Austria;
3. Department of Ophthalmology, Medical University of Innsbruck, Innsbruck, Austria; and
4. Biotechnology Discovery Research, Lilly Research Laboratories, Indianapolis, IN