1. Center for Proteomics and Metabolomics, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
2. Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
3. Bioprocessing Technology Institute, Agency for Science Technology and Research, 20 Biopolis Way No. 06-01, Singapore 138668