1. Laboratory of Phytochemistry, Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies, Yaounde, Cameroon;
2. Laboratory of Pharmacognosy, Center for Interdisciplinary Research on Medicines (CIRM), University of Liege, Liege, Belgium;
3. Laboratory of Natural Products Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon;
4. Laboratory of Pharmacology, Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies, Yaounde, Cameroon;
5. Department of Parasitology, Noguchi Memorial Institute for Medical Research (NMIMR), College of Health Sciences (CHS), University of Ghana, Legon, Accra, Ghana;
6. Department of Clinical Pathology, NMIMR, CHS, University of Ghana, Legon, Accra, Ghana