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Comparison of Epo (upper pannel, green) and EpoR (lower pannel, red) immunofluorescence in the human retina between representative samples. A, C: Non-diabetic donor; B, D: Diabetic donor. RPE: Retinal pigment epithelium; ONL: Outer nuclear layer; INL: Inner nuclear layer; GCL: Ganglion cell layer. The bar represents 20 mm.
