Affiliations

• ¹ Department of NeurosurgeryUniversity Hospital Essen, University of Essen-Duisburg, Hufelandstrasse 55, 45147 Essen, GermanyDepartment of NeurosurgeryHospital of Cologne-Merheim, Cologne, GermanyDepartment of EndocrinologyUniversity of Essen-Duisburg, Essen, GermanyDepartment of NeurosurgeryUniversity of Erlangen-Nuremberg, Erlangen, GermanyDepartment of NeurosurgeryUniversity of Tuebingen, Tuebingen, Germany ilonka.kreitschmann@uk-essen.de.
• ² Department of NeurosurgeryUniversity Hospital Essen, University of Essen-Duisburg, Hufelandstrasse 55, 45147 Essen, GermanyDepartment of NeurosurgeryHospital of Cologne-Merheim, Cologne, GermanyDepartment of EndocrinologyUniversity of Essen-Duisburg, Essen, GermanyDepartment of NeurosurgeryUniversity of Erlangen-Nuremberg, Erlangen, GermanyDepartment of NeurosurgeryUniversity of Tuebingen, Tuebingen, Germany.
• ³ Department of NeurosurgeryUniversity Hospital Essen, University of Essen-Duisburg, Hufelandstrasse 55, 45147 Essen, GermanyDepartment of NeurosurgeryHospital of Cologne-Merheim, Cologne, GermanyDepartment of EndocrinologyUniversity of Essen-Duisburg, Essen, GermanyDepartment of NeurosurgeryUniversity of Erlangen-Nuremberg, Erlangen, GermanyDepartment of NeurosurgeryUniversity of Tuebingen, Tuebingen, Germany Department of NeurosurgeryUniversity Hospital Essen, University of Essen-Duisburg, Hufelandstrasse 55, 45147 Essen, GermanyDepartment of NeurosurgeryHospital of Cologne-Merheim, Cologne, GermanyDepartment of EndocrinologyUniversity of Essen-Duisburg, Essen, GermanyDepartment of NeurosurgeryUniversity of Erlangen-Nuremberg, Erlangen, GermanyDepartment of NeurosurgeryUniversity of Tuebingen, Tuebingen, Germany.