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A) Preoperative Hunt and Kosnik (H&K) grade. 47% of the patients treated by coil embolization were classified as poor grade (grades 4-5). B) Glasgow outcome scale (GOS) score six months after coil embolization. 64% of the patients treated by coil embolization resulted in good recovery (GR) or moderate disability (MD). SD, severe disability;VS, vegetative state; D, dead.
