1. Department Biomolecular Health Sciences, Fac. Veterinary Medicine Utrecht University Utrecht The Netherlands
2. Department CDL Research University Medical Centre Utrecht Utrecht The Netherlands
3. Institute of Immunology & Infection Research, School of Biological Sciences University of Edinburgh Edinburgh UK
4. Biomolecular Mass Spectrometry and Proteomics, Bijvoet Centre for Biomolecular Research and Utrecht Institute of Pharmaceutical Sciences Utrecht University Utrecht The Netherlands