1 Institute of Medical Genetics, University of Zurich, Zurich, Switzerland. Electronic address: paolo.zanoni@uzh.ch.
2 Institute of Medical Genetics, University of Zurich, Zurich, Switzerland.
3 Institute of Medical Genetics, University of Zurich, Zurich, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland. Electronic address: anita.rauch@medgen.uzh.ch.