Activ C European Multicenter Study

Charité Berlin, Berlin

University Hospital Motol, Prague

Universität Rostock, Abteilung Neurochirurgie, Rostock

Regional Hospital Liberec, Liberec

Katholisches Klinikum Koblenz, Koblenz

Faculty Hospital Motol Prague, Prague

Helsinki University Central Hospital, Helsinki

Berufsgenossenschaftliche Kliniken Bergmannstrost, Halle

Neurosurgery at Instituti Fisioterapici Ospitalieri IFO, Rome

Warrington District General Hospital, Warrington