1 Department of Woman and Child Health and Public Health, Child Health Area, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168, Rome, Italy. aleperrix@gmail.com.
2 Department of Woman and Child Health and Public Health, Child Health Area, Università Cattolica del Sacro Cuore, Roma, Italy.
3 Department of Woman and Child Health and Public Health, Child Health Area, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168, Rome, Italy.