1. Sensors Group, Institute of Neuroinformatics, University of Zurich and ETH Zurich, Zurich, Switzerland
2. Instituto de Microelectrónica de Barcelona (IMB-CNM), CSIC, Barcelona, Spain
3. Soft Transducers Laboratory, Ecole polytechnique fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
4. Swiss Olympic Medical Center, Lausanne University Hospital, Lausanne, Switzerland