1 Department of Health Promotion, Maternal and Child Care, Internal Medicine and Medical Specialties "G.D'Alesandro", University of Palermo, Palermo, Italy; Division of Pediatric Infectious Diseases, "G. Di Cristina" Hospital, ARNAS Civico Di Cristina Benfratelli, Palermo, Italy.
2 Department of Health Promotion, Maternal and Child Care, Internal Medicine and Medical Specialties "G.D'Alesandro", University of Palermo, Palermo, Italy. Electronic address: [email protected].
3 Department of Health Promotion, Maternal and Child Care, Internal Medicine and Medical Specialties "G.D'Alesandro", University of Palermo, Palermo, Italy.
4 Department of Health Promotion, Maternal and Child Care, Internal Medicine and Medical Specialties "G.D'Alesandro", University of Palermo, Palermo, Italy; Infectious and Tropical Diseases Unit, AOU Policlinico "P. Giaccone", Palermo, Italy.