Tulane University School of Medicine, New Orleans, Louisiana, USA. Department of Anatomical Sciences, St. George's University School of Medicine, St. George's, Grenada. Seattle Children's, Seattle, Washington, USA. Department of Cell and Developmental Biology, University of Colorado, Boulder, Colorado, USA. Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan. Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, Louisiana, USA. Department of Anatomy, University of Warmia and Mazury, Olsztyn, Poland. Department of Neurology, Tulane University School of Medicine, New Orleans, Louisiana, USA. Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, USA.