1. Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
2. Fondazione Istituto “G. Giglio” Cefalú, Palermo, Italy
3. Department of Health Promotion and Child Care, Internal Medicine and Medical Specialties, Universitá degli Studi di Palermo, Palermo, Italy
4. Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy