1. Council for Scientific and Industrial Research (CSIR), Water Research Institute, Biomedical and Public Health Research Unit, P.O. Box AH 38, Accra, Ghana
2. University of Oklahoma Health Sciences Center, Department of Biochemistry and Molecular Biology, 1100 N Lindsay Ave, Oklahoma City, OK 73104, USA
3. University of North Carolina at Chapel Hill School of Medicine, 321 S Columbia St, Chapel Hill, NC 27599, USA
4. Kwame Nkrumah University of Science and Technology, School of Medicine and Dentistry, Kumasi, Ghana