1. Marchand Institute for Minimally Invasive Surgery, Mesa, Arizona
2. Faculty of Medicine, Fayoum University, Fayoum, Egypt
3. International University of the Health Sciences, Basseterre, Saint Kitts
4. Midwestern University College of Osteopathic Medicine, Glendale, Arizona
5. Department of Pediatrics, Tucson Medical Center, Tucson, Arizona