1. Department of Analytical Development & Research, Section Phytochemical Research, WALA Heilmittel GmbH, DE-73087 Bad Boll/Eckwälden, Germany
2. Pharmacological and Clinical Research, WALA Heilmittel GmbH, DE-73087 Bad Boll/Eckwälden, Germany
3. Mass Spectrometry Unit, Core Facility Hohenheim, University of Hohenheim, DE-70593 Stuttgart, Germany
4. Translational Complementary Medicine, Department of Pharmaceutical Sciences, University of Basel, CH-4058 Basel, Switzerland
5. Institute for Infection Prevention and Hospital Epidemiology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, DE-79106 Freiburg, Germany