1. Leibniz Institute on Aging, Fritz Lipmann Institute, Jena, Germany
2. Department of Cell and Developmental Biology, University College London, London, United Kingdom
3. Klinik und Poliklinik für Dermatologie, Venerologie und Allergologie, Universität Leipzig, Leipzig, Germany
4. Department of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany