1. Brain Research Africa Initiative (BRAIN), Yaoundé P.O. Box 25625, Cameroon
2. Global Health Institute, University of Antwerp, Doornstraat 331, 2610 Antwerp, Belgium
3. Division of Operational Research in Health, Ministry of Public Health, N°8 Rue 3038 quartier du Lac (Yaoundé III), Yaoundé P.O. Box 3595, Cameroon
4. Neuroscience Lab, Faculty of Medicine and Biomedical Sciences, The University of Yaoundé 1, Yaoundé P.O. Box 1364, Cameroon
5. Neurology & Clinical Neuroscience Department, Yaoundé Central Hospital, Yaoundé P.O. Box 87, Cameroon