The Psychological Impact of COVID-19 on Healthcare Providers in Obstetrics: A Cross-Sectional Survey Study oleh Lidia Del Piccolo, Valeria Donisi, Ricciarda Raffaelli, Simone Garzon, Cinzia Perlini, Michela Rimondini, Stefano Uccella, Antonella Cromi, Fabio Ghezzi, Maddalena Ginami, Enrico Sartori, Francesca Ciccarone, Giovanni Scambia, Massimo Franchi