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Fisher 344 rats (12 week old) were exposed to 900 MHz (GSM) in a head-only exposure apparatus. Experimental groups consisted of a cage control, positive controls, sham exposure, 0.2 W/kg, and 2.0 W/kg. 14 and 50 days after the exposure animals are sacrificed with intracardiac fixation, the brains removed from the skull, embedded in paraffin, and serial 5 um thick brain sections prepared from 3 different regions. Dark neurons will be identified using cresyl violet staining and immunofluorescence. Start date September 2004, end date September 2005. |