1. University of California, Santa Cruz, CA
2. Igbinedion University, Okada, Nigeria
3. Imo State University, Owerri, Nigeria
4. Jackson State University, MS
5. Chukwuemeka Odumegwu Ojukwu University Teaching Hospital, Awka, Nigeria
6. Kharkiv National Medical University, Kharkiv, Ukraine
7. Obafemi Awolowo University, Ife, Nigeria
8. Babcock University, Ilishan-Remo, Nigeria
9. King’s College Hospital NHS Foundation Trust, London, England
10. Reddington Multispecialist Hospital, Lagos, Nigeria
11. University of Ilorin Teaching Hospital, Ilorin, Nigeria
12. University of Osun Teaching Hospital, Osogbo, Nigeria
13. Ring Road State Hospital, Ibadan, Nigeria.