[1] Univ Liverpool Liverpool Sch Trop Med, Int Publ Hlth, Ctr Capac Res, Liverpool, Merseyside, England
[2] Kwame Nkrumah Univ Sci & Technol, Med Diagnost, Kumasi, Ghana
[3] Sanquin, Expt Immunohaematol, Amsterdam, Netherlands
[4] Kwame Nkrumah Univ Sci & Technol, Child Hlth, Sch Med & Dent, Kumasi, Ghana
[5] Komfo Anokye Teaching Hosp, Directorate Child Hlth, Kumasi, Ghana
[6] Univ Ghana, Med Sch, Hematol, Accra, Ghana
[7] Korle Bu Teaching Hosp, Ghana Inst Clin Genet, Adult Sickle Cell Clin, Accra, Ghana