Clinical Outcomes of Coil Embolization for Unruptured Intracranial Aneurysms Categorized by Region and Hospital Size : A Nationwide Cohort Study in Korea. - Bong-Gyu Ryu; Si Un Lee; Hwan Seok Shim; Jeong-Mee Park; Yong Jae Lee; Young-Deok Kim; Tackeun Kim; Seung Pil Ban; Hyoung Soo Byoun; Jae Seung Bang; O-Ki Kwon; Chang Wan Oh (Journal of Korean Neurosurgical Society, 2023)