Ekseth, Kåre MD; Boström, Sverre MD; Vegfors, Magnus MD, PhD
Departments of Neurosurgery (KE, SB) and Anesthesiology (MV), University Hospital, Linköping, Sweden
Received, November 12, 1996. Accepted, May 18, 1998.
Reprint requests: Kåre Ekseth, M.D., Department of Neurosurgery, The National Hospital, 0027 Oslo, Norway.