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immunohistochemical detection of endogenous IgG (green label) bound to retinal ganglion cells in the retina of a human eye donor with glaucoma. In the sagittal section IgG was detected following incubation with an anti-human IgG antibody. Nuclei were counterstained with DAPI (blue) to facilitate orientation. Image courtesy of Dr. O. Gramlich (University of Mainz)
