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[[File: Release_of_GFAP_after_astrocyte_injury.png|thumb|360px|Release_of_GFAP_after_astrocyte_injury. <ref name="Arti1">Glial Fibrillary Acidic Protein in Blood as a Disease Biomarker of Neuromyelitis Optica Spectrum Disorders. Front. Neurol., 17 March 2022, https://www.frontiersin.org/articles/10.3389/fneur.2022.865730/full#F1</ref>]]