1. Faculty of Medicine, Department of Internal Medicine, University of Botswana and Department of Medicine, Princess Marina Hospital, Gaborone, BotswanaFaculty of Medicine, Department of Internal Medicine, University of Botswana and Department of Medicine, Princess Marina Hospital, Gaborone, Botswana
2. Department of Medicine, Princess Marina Hospital, Gaborone, BotswanaDepartment of Medicine, Princess Marina Hospital, Gaborone, Botswana
3. Department of Accident and Emergency, Princess Marina Hospital, Gaborone, BotswanaDepartment of Accident and Emergency, Princess Marina Hospital, Gaborone, Botswana
4. Ifakara Health Institute, Morogoro, TanzaniaIfakara Health Institute, Morogoro, Tanzania
5. Department of Pharmacology and Therapeutics College of Medicine, Ekiti State University, Ado-Ekiti, NigeriaDepartment of Pharmacology and Therapeutics College of Medicine, Ekiti State University, Ado-Ekiti, Nigeria
6. Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, SwedenDepartment of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
7. Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United KingdomStrathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
8. Department of Pharmacy, Faculty of Health Sciences, School of Health Care Sciences, Sefako Makgatho Health Sciences University, South AfricaDepartment of Pharmacy, Faculty of Health Sciences, School of Health Care Sciences, Sefako Makgatho Health Sciences University, South Africa