Abstract This is a case control study aimed to measure levels of, Prothombin time (PT), activated partial Thromboplastin time (APTT), platelet count in patients with homozygous sickle cell disease (HbSS), sickle cell trait (HbAS) and normal controls (HbAA). The study period from August to October 2019, in Khartoum State in the Sickle Cell Clinic...
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