Turkish Neurosurgery 1990 , Vol 1 , Num 3
Atilla ERDEM1, Aytaç YİĞİT2, Adnan GÜVENER2, Şükrü ÇAĞLAR1
1Department of Neurosurgery University of Ankara, Medical Faculty, İbn-i Sina Hospital
2Department of Neurology University of Ankara, Medical Faculty, İbn-i Sina Hospital
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