Hyperventilation revisited:: physiological effects and efficacy on focal seizure activation in the era of video-EEG monitoring - Guaranha, Mirian S. B.; Garzon, Eliana; Buchpiguel, Carlos Alberto; Tazima, Sérgio; Yacubian, Elza M. T.; Sakamoto, Américo C. (Epilepsia, 2005)