A dynamic scale for surgical activity (DYSSA) stratification during the COVID-19 pandemic. Issue 10 (31st July 2020) - Morales-Conde, Salvador; Balla, Andrea; Álvarez Gallego, Mario; Aranda Narváez, José Manuel; Badia, Josep María; Balibrea, José María; García-Botella, Alejandra; Guirao, Xavier; Espín-Basany, Eloy; Martín-Antona, Esteban; Martín-Pérez, Elena; Martínez Cortijo, Sagrario; et al.