1. III. Institute of Physics − Biophysics, Georg-August-University, 37077 Göttingen, Germany
2. The Rosalind Franklin Institute, Harwell Campus, Didcot OX11 0FA, U.K.
3. Cluster of Excellence “Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells” (MBExC), Georg August University, 37077 Göttingen, Germany