Effect of Multiple Cranial Burr Hole Surgery on Prevention of Recurrent Ischemic Attacks in Children with Moyamoya Disease - Oliveira, R. S. de; Amato, M. C. M.; Simão, G. N.; Abud, D. G.; Avidago, E. B.; Specian, C. M.; Machado, H. R. (Neuropediatrics, 2009)