Bern
University Hospital Bern
Departement of Neurosurgery
3010 Bern
Switzerland
University Hospital Bern
Department of Orthopaedy
3010 Bern
Switzerland
Lindenhofspital Bern
3012 Bern
Switzerland
Biel
Spitalzentrum Biel
2501 Biel
Switzerland
Luzern
Hirslanden Klinik St. Anna
6006 Luzern
Switzerland
St. Gallen
Kantonsspital St.Gallen
Departement of Neurosurgery
9007 St.Gallen
Switzerland
Zürich
University Hospital Zürich
Departement of Neurosurgery
8091 Zürich
Switzerland