WILLIAMS, JAMES G. L. PHD1; JONES, JOHN R. MD2; WILLIAMS, BARBARA1
1Psychophysiology Laboratories, Departments of Psychiatry, Surgery and Physiology, University of Nebraska Medical Center Omaha, Neb.
2Section of Anesthesiology, Department of Surgery, University of Nebraska Medical Center Omaha, Neb.
Received for publication May 16, 1969; revision received July 18, 1969