The impact of SARS-CoV-2 pandemic on Oncologic and Degenerative Spine Surgery Department activity: the experience of Rizzoli Orthopaedic Institute under COVID-19 lockdown. - Ghermandi R; Pipola V; Terzi S; Tedesco G; Cavallari C; Bandiera S; Barbanti Bròdano G; Evangelisti G; Girolami M; Gasbarrini A (European review for medical and pharmacological sciences, 2020)