1. Department of Pharmacy, Laboratory of Therapeutic Chemistry and Analysis of Natural Substances, Faculty of Pharmaceutical Sciences (Université de Lubumbashi), 27 Avenue Kato, Commune Kampemba, Lubumbashi, Congo
2. Department of Pharmacy, Faculty of Pharmaceutical Sciences and Public Health, Université Officielle de Bukavu (UOB), P.O. Box: 570, Bukavu, Commune of Kadutu, Av. Karhale, Congo