Bergman's comprehensive encyclopedia of human anatomic variation [electronic resource] / [edited by] R. Shane Tubbs, MS, PA-C, PhD, Professor and Chief Scientific Officer, Seattle Science Foundation, Seattle, Washington, United States, Professor of Anatomy, Department of Anatomical Sciences, St. George's University, Grenada, Centre of Anatomy and Human Identification, University of Dundee, Scotland, United Kingdom, Mohammadali M. Shoja, MD, Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran, Marios Loukas, MD, PhD, Professor and Chair, Department of Anatomical Sciences, Dean of Research, School of Medicine, St. George's University, Grenada.