1. Pharmacen™, Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa;
2. Faculty of Science, Department of Pharmaceutical Sciences and SAMRC Herbal Drugs Research Unit, Tshwane University of Technology, Pretoria, South Africa;
3. Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark;
4. Celvivo IVS, Blommenslyst, Denmark