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A EEG showing background asymmetry due to slowing of background activity in the left posterior regions (20s/pg, 14 μV/mm, 0.1 s, 15 Hz, Notch 50 Hz). B EEG on the sixth day since hospitalization, devoid of frank abnormalities (20s/pg, 14 μV/mm, 0.1 s, 15 Hz, Notch 50 Hz).
