Acute Care Surgery during the COVID-19 pandemic in Spain: Changes in volume, causes and complications. A multicentre retrospective cohort study

1. Cano-Valderrama, O.
2. Morales, X.
3. Ferrigni, C.J.
4. Martín-Antona, E.
5. Turrado, V.
6. García, A.
7. Cuñarro-López, Y.
8. Zarain-Obrador, L.
9. Duran-Poveda, M.
10. Balibrea, J.M.
11. Torres, A.J.