Illustrated Encyclopedia of Human Anatomic Variation Written by Ronald A. Bergman, PhD, Emeritus Professor Department of Anatomy and Cell Biology, University of Iowa; Adel K. Afifi, MD, MS, Professor Departments of Pediatrics, Anatomy and Cell Biology, and Neurology, University of Iowa; and Ryosuke Miyauchi, MD, Professor Department of Anatomy, Fukuoka University. Selected by: janetnel@usc.edu