Buonanno, Pasquale, Marra, Annachiara, Iacovazzo, Carmine, Vargas, Maria, Nappi, Serena, de Siena, Andrea Uriel and Servillo, Giuseppe (2022) Preoperative anxiety during COVID-19 pandemic: A single-center observational study and comparison with a historical cohort. [Pubblicazione in rivista scientifica]