1. Department for Clinical Hygiene and Infectiology, HELIOS Clinics of Schwerin, Wismarsche Str. 393-397 19049, Schwerin, Germany
2. Institute for Radiology and Neuroradiology, HELIOS Clinics of Schwerin, Schwerin, Germany
3. Institute for Laboratory and Transfusion Medicine, HELIOS Clinics of Schwerin, Schwerin, Germany
4. Neurosurgery and Spinal Surgery, HELIOS Clinics of Schwerin, Schwerin, Germany