title: Correction.
mesh_terms: D000818:Animals; D001254:Astrocytoma / Q000503:physiopathology*; D001932:Brain Neoplasms / Q000503:physiopathology*; D008214:Lymphocytes / Q000503:physiopathology*; D009374:Neoplasms, Experimental / Q000503:physiopathology*; D051381:Rats