Dr. Ceylan is the Head of Turkish Neurosurgery Society and Head of Kocaeli University, Department of Neurosurgery Head of Pituitary Research Center, Kocaeli. He is also a Professor at the University of Kocaeli. He is board-certified in Neurosurgery. His clinical interests are Neurosurgery, Endoscopic Surgery, Neuroendocrine Surgery, Neurooncological Surgery, Neurovascular Surgery, Neuroendoscopy.
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