Fig. 1
From: Prevalence of hemoglobin S trait among blood donors: a cross-sectional study
A figure of photomicrograph results for blood obtained from a person without and with sickle cell trait. a Shows sickled red blood cells (black arrowed) from a person with sickle cell trait under low oxygen tension. b Represent normal red blood cells (red arrowed) from a person with no sickle cells trait