1. Department of Anatomy and Cell Biology; Roy J. and Lucille A. Carver College of Medicine, University of Iowa; Iowa City Iowa
2. The Office of Consultation and Research in Medical Education, Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa, University of Iowa; Iowa City Iowa
3. Department of Internal Medicine; Roy J. and Lucille A. Carver College of Medicine, University of Iowa; Iowa City Iowa