[1] Istanbul Medeniyet Univ, Goztepe Prof Dr SuleymanYalcin City Hosp, Dept Neurosurg, Istanbul, Turkiye
[2] Rigshosp, Dept Neurosurg, Copenhagen, Denmark
[3] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark
[4] Karolinska Inst, Dept Clin Neurosci, Stockholm, Sweden