Our son was diagnosed with moya moya last October and had EDAS surgeries on both side in February and March of this year. His neuro surgeon is Dr. Mark Hamilton (Alberta Children's Hospital), he has experience with other patients suffering from moya moya. He is apparently one of the best in his field and I would recommend him to anyone. He took excellent care of our boy and we can't thank him enough for his expertise. When I first met him, I knew my boy was in good hands.