[1] Univ Hosp Geneva, Neurosurg, Geneva, Switzerland
[2] Univ Hosp Geneva, Neurol, Geneva, Switzerland
[3] Univ Hosp Geneva, Clin Res Ctr, Geneva, Switzerland
[4] Univ Hosp Geneva, Intens Care Med, Geneva, Switzerland
[5] Univ Hosp Zurich, Dept Neuroradiol, Zurich, Switzerland
[6] Kantonsspital Aarau Switzerland, Neurosurg, Aarau, Switzerland
[7] Kantonsspital Aarau Switzerland, Neurol, Aarau, Switzerland
[8] Kantonsspital Aarau Switzerland, Neuroradiol, Aarau, Switzerland
[9] Univ Hosp Gottingen, Neurosurg, Gottingen, Germany
[10] Univ Hosp Bern Switzerland, Neurosurg, Bern, Switzerland
[11] Univ Hosp Bern Switzerland, Neuroradiol, Bern, Switzerland
[12] Univ Hosp Bern Switzerland, Intens Care Med, Bern, Switzerland
[13] Univ Hosp Zurich, Neurosurg, Zurich, Switzerland
[14] Univ Hosp Zurich, Intens Care Med, Zurich, Switzerland
[15] Hirslanden Klin Aarau, Neurosurg, Aarau, Switzerland
[16] Univ Melbourne, Sch Populat & Global, Melbourne, Vic, Australia
[17] Univ Hosp Basel, Neurosurg, Basel, Switzerland
[18] Univ Hosp Lausanne, Neurosurg, Lausanne, Switzerland
[19] Osped Civ Lugano, Neurosurg, Lugano, Switzerland
[20] Kantonsspital St Gallen, Neurosurg, St Gallen, Switzerland
[21] Univ Toronto, Neuroradiol, Toronto, ON, Canada
[22] Kantonsspital Luzern Switzerland, Neurosurg, Luzern, Switzerland
[23] Univ Freiburg, Fac Med, Med Ctr, Dept Neurosurg, Freiburg, Germany