Does the involvement of first-year residents have a negative impact on the performance of a newborn hearing screening program? - Gallus R; Rizzo D; De Luca LM; Melis A; Kihlgren C; Parente P; Anzivino R; Frezza S; Priolo F; Bussu F; Conti G (International journal of pediatric otorhinolaryngology, 2020)