1. University of Calabar Teaching Hospital; Department of Community Health; PMB 1278 Calabar Nigeria
2. Stellenbosch University; Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences; PO Box 241 Cape Town South Africa 8000
3. South African Medical Research Council; Cochrane South Africa; Cape Town South Africa
4. University of Tucson; GIDP Entomology and Insect Science; Tucson Arizona USA 85721
5. Excellence & Friends Management Consult (EFMC); Plot 506 Cadastral Zone, Kubwa Ext II, Arab Road, Kubwa Abuja FCT Nigeria
6. University of Calabar Teaching Hospital (ITDR/P); Institute of Tropical Diseases Research and Prevention; Moore Road Calabar Cross River State Nigeria
7. University of Calabar Teaching Hospital; Department of Paediatrics; PMB 1115 Calabar Cross River State Nigeria