1. Institute of Biochemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, A-6020, Austria
2. Department of Analytical Biochemistry and Interfaculty Mass Spectrometry Center, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, 9713 AV, The Netherlands
3. Michael Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, A-6020, Innsbruck, Austria
4. Laboratory of Pediatrics, Section Systems Medicine of Metabolism and Signaling, University of Groningen, University Medical Center Groningen, Groningen, 9713 AV, The Netherlands
5. Department for Neuroscience, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, 26129, Germany