TY - JOUR A1 - Salottolo, K. A1 - Caiafa, R. A1 - Mueller, J. A1 - Tanner, A. A1 - Carrick, M.M.Lieser A1 - M, Berg A1 - Bar-Or, D. A1 - G T1 - Multicenter study of US trauma centers examining the effect of the COVID-19 pandemic on injury causes, diagnoses and procedures Y1 - 2021 DO - 10.1136/tsaco-2020-000655 VL - 6 IS - 1 ER -