1. Department of Animal Biology and Conservation, Faculty of Science, University of Buea, Buea, Cameroon.
2. Panafrican Hospital Center-Douala, Buea, Cameroon.
3. Department of Neurosurgery, Antwerp University Hospital and University of Antwerp, Edegem, Belgium.
4. Department of Surgery, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon.
5. Holo Healthcare, Nairobi, Kenya.
6. Department of Emergency Medicine, University of Florida, Gainesville, Florida, USA.
7. Department of Clinical Neuroscience, University of Cambridge, Cambridge, United Kingdom.