1. Ortopediatria Center for Education, Research and Patient Care in Paediatric Orthopedics Bologna Italy
2. Department of Orthopedics and Traumatology University of PerugiaR. Silvestrini Hospital Perugia Italy
3. Department of Paediatric Orthopedics Anna Meyer Children’s Hospital Florence Italy
4. Dermatology Unit Department of Pediatrics Anna Meyer Children's Hospital Florence Italy