PMC6700497_01
Electroencephalographic (EEG) recording with periodic bilateral generalized synchronous spike-and-slow waves coupletes every 5 to 9 s.
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PMC6700497_01_gr1.jpg
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Electroencephalographic (EEG) recording demonstrated periodic bilateral generalized synchronous spike-and-slow waves in couplets every 5 to 9 s (Fig. 1).