Original Article: PDF Only
FESSLER, RICHARD G. MD, PhD*; JOHNSON, DOUGLAS L. MD, PhD†; BROWN, FREDERICK D. MD†; ERICKSON, ROBERT K. MD†; REID, STEVEN A. MD*; KRANZLER, LEONARD MD†
*From the Department of Neurological Surgery, University of Florida, College of Medicine, Gainesville, Florida
†From the Section of Neurosurgery, University of Chicago Medical Center, Chicago, Illinois