1. Department of Anatomical Sciences; St. George's University, School of Medicine; Grenada West Indies
2. Department of Internal Medicine; Lincoln Medical and Mental Health Center; Bronx New York
3. Division of Pre-Clinical Sciences; New York College of Podiatric Medicine; New York New York
4. Children's Hospital; Pediatric Neurosurgery; Birmingham Alabama
5. Department of Anatomy; University of Varmia and Mazuria; Olsztyn Poland