1. Center of Cancer Research, Medical University of Vienna, Borschkegasse 8a, 1090 Vienna, Austria
2. Department of Surgery, Medical University Vienna, 1090 Vienna, Austria
3. Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
4. Joint Metabolome Facility, University and Medical University Vienna, 1090 Vienna, Austria
5. Department for Environmental Health, Center of Public Health, Medical University of Vienna, 1090 Vienna, Austria
6. Department of Pharmacology & Toxicology, School for Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6229 ER Maastricht, The Netherlands