Headache Outcomes After Coil Embolization in Patients with Unruptured Intracranial Aneurysms: Do They Get Better or Worse? A Prospective Analysis. - Park, Jung Hyun; Kim, Hoon; Kim, Seong Rim; Park, Ik Seong; Byeon, Min Seok; Kim, Young Woo (World Neurosurgery, 2018)