1. Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Padualaan 8, 3584 CH Utrecht, The Netherlands
2. Netherlands Proteomics Center, Padualaan 8, 3584 CH Utrecht, The Netherlands
3. Danone Nutricia Research, 3584 CT Utrecht, The Netherlands