1. Department of Molecular Medicine, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
2. University Hospital Schleswig-Holstein, Campus Lübeck, Institute of Medical Biometry and Statistics, Lübeck, Germany
3. Department of Community Health, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
4. Kumasi Centre for Collaborative Research in Tropical Medicine, Kumasi, Ghana