by Guerra, W K, Gaab, M R, Dietz, H, Mueller, J U, Piek, J, Fritsch, M J
Published in Journal of neurosurgery (01.02.1999)

by Guerra, W K-W, Baldauf, J, Schroeder, H W S
Published in Zentralblatt für Neurochirurgie (01.11.2007)

by GUERRA, W. K.-W, PIEK, J, GAAB, M.-R
Published in Intensive care medicine (01.11.1999)