Ibrahim Sbeih, MD, Neurosurgical Department, Farah Hospital, Amman, Jordan

Igor Paredes Sansinenea, MD, PhD, Department of Neurosurgery, University Hospital "12 de Octubre", Madrid, Spain

Mikhail Gelfenbeyn, MD, PhD, Department of Neurological Surgery, University of Washington, Seattle, Washington, USA

Tae Gon Kim, MD, Division of Vascular Section, Department of Neurosurgery, Bundang CHA Hospital, Seongnam, Republic of Korea

Toshiaki Hayashi, MD, PhD, Department of Neurosurgery, Sendai City Hospital, Sendai, Japan

Francesco Acerbi, MD, PhD, Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico, C. Besta Milano, Milano, Italy

Marina Pitsika, MD, MSc, Department of Neurosurgery, Royal Victoria Infirmary, Newcastle-Upon-Tyne, United Kingdom

Roberto Jose Diaz, MD, PhD, Department of Neurology and Neurosurgery, Faculty of Medicine, McGill University, Montreal, Canada

Kai Wang, MD, Department of Neurosurgery, Weihai Central Hospital, Weihai, Shandong, China

Ahmed M. Alkhani, MD, FRCS(C), Division of Neurosurgery, King Abdulaziz Medical City, Riyadh, Saudi Arabia