1. Department of Physical Therapy and Rehabilitation Science; Roy J. and Lucille A. Carver College of Medicine, The University of Iowa; Iowa City Iowa
2. Department of Anatomy and Cell Biology; Roy J. and Lucille A. Carver College of Medicine, The University of Iowa; Iowa City Iowa
3. Department of Anesthesia; Roy J. and Lucille A. Carver College of Medicine, The University of Iowa; Iowa City Iowa