1. Department of Neurosurgery Incheon St. Mary's Hospital College of Medicine The Catholic University of Korea Incheon Korea
2. Department of Neurosurgery Seoul St. Mary's Hospital College of Medicine The Catholic University of Korea Seoul Korea
3. Department of Neurosurgery St. Vincent's Hospital College of Medicine The Catholic University of Korea Suwon Korea
4. Department of Neurosurgery St. Vincent's Hospital Cell Death Disease Research Center College of Medicine The Catholic University of Korea Suwon Korea