1. PRISNA BV, Leiden, The Netherlands
2. Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, WI, USA
3. Plant Research International, BU Biosciences, Wageningen University and Research Centre, Wageningen, The Netherlands
4. Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
5. Natural Products Laboratory, Institute of Biology, Leiden University, Leiden, The Netherlands