Prevalence of Relative Systemic Hypertension in Ghanaian Adults with Sickle Cell Disease - Benneh, Amma A.; Owusu-Ansah, Amma T.; Sey, Fredericka; Ampomah, Mary A.; Olayemi, Edeghonghon; Ofori-Acquah, Solomon Fiifi (Blood, 2015)