Genetic Modifiers of Sickle Cell Anemia in Patients from Nigeria: A Pilot Study. (2nd November 2019) - Nnodu, Obiageli; Isa, Hezekiah; Tanko, Yohanna; Otu, Theresa; Ekong, Jacqueline; Elmi, Zakaria; Rooks, Helen; Menzel, Stephan; Ekong, Rosemary