1. University of Ilorin; Department of Epidemiology & Community Health, Faculty of Clinical Sciences, College of Health Sciences; PMB 1515 Ilorin Kwara Nigeria 240001
2. University of Ilorin Teaching Hospital (UITH); PMB 1459 Ilorin Nigeria 240001
3. Division of Health Sciences, Warwick Medical School, The University of Warwick; Warwick-Centre for Applied Health Research and Delivery (WCAHRD); Warwick UK
4. Mid-Sweden University; Department of Public Health; Sundsvall Sweden
5. Heart of England NHS Foundation Trust; Birmingham UK