1. Divisions of General Internal Medicine and Infectious Diseases, University Health Network, Toronto, Ontario, Canada.
2. Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
3. Electrical and Bioengineering Departments, University of California, Los Angeles, California.
4. Department of Medical Laboratory Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana.
5. Volta River Authority, Accra, Ghana.
6. Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, California.