Tetsuya Tsukahara
National Hospital Organization, Kyoto Medical Center, Mukaihata-cho 1, 612-8555 Fukakusa,
Fushimi-ku, Kyoto, Japan
Alberto Pasqualin
Verona City Hospital, Institute of Neurosurgery, Piazzale Stefani 1, 37100 Verona, Italy
Giuseppe Esposito, MD, PhD
Consultant Neurosurgeon, Department of Neurosurgery, University Hospital Zurich, Frauenklinikstrasse 10, 8091 Zurich, Switzerland
Luca Regli
University Hospital Zurich, Department of Neurosurgery, Frauenklinikstrasse 10, 8091 Zurich, Switzerland
Giampietro Pinna
Verona City Hospital, Institute of Neurosurgery, Piazzale Stefani 1, 37100 Verona, Italy