[1] Kwame Nkrumah Univ Sci & Technol, Dept Med, Kumasi, Ghana
[2] Komfo Anokye Teaching Hosp, Directorate Internal Med, Kumasi, Ghana
[3] Univ Colorado Denver, Integrated Physiol Program, Anschutz Med Campus, Aurora, CO USA
[4] Komfo Anokye Teaching Hosp, Kumasi, Ghana
[5] Kwame Nkrumah Univ Sci & Technol, Dept Obstet & Gynecol, Kumasi, Ghana
[6] Komfo Anokye Teaching Hosp, Sickle Cell Dept, Kumasi, Ghana
[7] Univ Pittsburgh, Pittsburgh, PA USA
[8] Kwame Nkrumah Univ Sci & Technol, Sch Med & Dent, Kumasi, Ghana