1. a Toxicology and Hydrology Laboratory, Faculty of Medicine, Pharmacy and Dentistry, Cheikh Anta Diop University, Fann, Avenue Cheikh Anta Diop, BP:5005, Dakar, Senegal
2. b Wutene, Inc., 2101 Aldah Dr, Atlanta Area, Tucker, GA, USA
3. c Department of Physical and Chemical Sciences, Training and Research Unit of Health Sciences, Iba Der Thiam University, Grand Standing, Thiès, BP: A967, Senegal