Figure 7. Erythrocytes of Parkinson's disease patients prepared from whole blood with added thrombin. Serum ferritin levels: (A) 118 ng.mL−1 (B) 194 ng.mL-1 (C) 21 ng.mL-1 (D) 107 ng.mL−1 (lower machine magnification to show general SEM view of erythrocytes) (E) 145 ng.mL−1 (F) 358 ng.mL-1 (G) 372 ng.mL-1 (H) 90 ng.mL-1 Scale bar = 1μm.