1. Department of Pharmacology and Therapeutics, Faculty of Health Sciences University of Namibia Windhoek Namibia
2. Clinical Pharmacology, Pharmacoeconomics Karolinska Institute (Sweden); Sefako Makgatho Health Sciences University (South Africa); Strathchlyde Institue of Pharmacy and Biomedical Sciences (Scotland)
3. School of Pharmacy and School of Public Health University of Washington Seattle Washington USA
4. School of Pharmacy, Faculty of Health Sciences University of Namibia Windhoek Namibia