Photomicrographs of fixed sickle red blood cells from a typical experiment.

(A) Results after 4 hours of incubation at 37°C under oxygenation conditions. (B) Photomicrograph obtained from the oxygenation port after 3.67 hours of cycling. (C) Photomicrograph obtained from the deoxygenation port after 3.67 hours of cycling. (D) Results after 4 hours of cycling followed by oxygenation.