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Santamauro, J. T.; Mangino, D. A.; Stover, D. E. Respiration (1999)
Ruge, M. I.; Victor, J.; Hosain, S.; Correa, D. D.; Relkin, N. R.; Tabar, V.; Brennan, C.; Gutin, P. H.; Hirsch, J. Stereotactic and Functional Neurosurgery (1999)
