Received: 31 December 2017
Accepted: 17 July 2018
First Online: 24 July 2018
: AIA is a research fellow at the University of Fort Hare. OVA is a family physician and the acting head of accident and emergency unit at the Cecilia Makiwane Hospital. WA is a professor of Environmental Sociology at the University of Fort Hare.
: The University of Fort Hare Ethical Review Committee and Ondo State Ministry of Health Ethical Review committee reviewed and approved the study protocol. All participants gave their consent to participate in the study.
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.