Affiliation: | (1) Department of Physiology, University of Rochester Medical Center, 14642-8642 Rochester, New York;(2) The Marine Biological Laboratory, 02543 Woods Hole, Massachusetts;(3) Present address: Dept. of Neurosurgery, Massachusetts General Hospital, 02114 Boston, Massachusetts;(4) Present address: Dept. of Otolaryngology, Baylor College of Medicine, 77030 Houston, Texas |