Crul, Ben J. MD, PhD; van Dongen, Robert T. MD; Snijdelaar, Dirk G. MD; Rutten, Ewald H. MD
Department of Anesthesiology and Pain Treatment and Department of Radiotherapy, St. Radboud Hospital, University of Nijmegen, The Netherlands
Address correspondence and reprint requests to Ben J. Crul, MD, PhD, Department of Anesthesiology and Pain Treatment, St. Radboud Hospital, University of Nijmegen, Postbox 9101, 6500 HB Nijmegen, The Netherlands.
The authors thank Dr. E. N. Robertson for his advice and assistance with the preparation of this article.
Accepted for publication April 28, 1994.
