Jeroen J.M. Renkens, Erasmus Medical Center, Rotterdam, the Netherlands:
Spinal infections, the Dutch protocol for diagnostic and treatment.
Gregory D. Schroeder, Rothman Orthopaedic Institute, Philadelphia, USA:
Systematic Approach to spinal infections: Do we need a classification system?
F. Cumhur Öner,University Medical Center Utrecht, Utrecht, the Netherlands:
Postoperative spinal infections
Charles Vogely from University Medical Center Utrecht, the Netherlands.