1. Department of Anesthesia and Intensive Care, School of Medicine and Health Science, University for Development Studies, Tamale, Ghana 00233
2. Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana 00233
3. Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway 6012
4. Department of Agricultural and Biosystems Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana 00233