Department of Radiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390. Safe Place: Center for Child Protection and Health, Division of General Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA. Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA. Department of Pediatrics, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH. Department of Radiology, West Virginia University School of Medicine, Morgantown, WV. Department of Radiology, University of Colorado School of Medicine, Aurora, CO. Section of Pediatric Radiology, C. S. Mott Children's Hospital, Department of Radiology, Michigan Medicine, Ann Arbor, MI.