1. School of Pharmacy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
2. Ministry of Health and Social Services, National Tuberculosis and Leprosy Programme, Windhoek, Namibia
3. Anioxis Corporation, Massachusetts, USA
4. Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden