1. Electron Microscopy (EM) Core Facility and Department of Infectious Diseases; Heidelberg University Hospital; Heidelberg Germany
2. Electron Microscopy (EM) Unit; Centro de Biologia Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid; Madrid Spain
3. Virology Department; Centro de Biologia Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid; Madrid Spain
4. Electron Microscopy (EM) Core Facility; University of Ulm; Ulm Germany