Kalli, M., Moussa, A. M., Oumar, A., & Ouchemi, C. (2021). Impact of the first wave of the COVID-19 pandemic on emergency surgical activities at the National Reference University Hospital of N’Djamena. Acta Biomedica Atenei Parmensis, 92(S2), e2021339. https://doi.org/10.23750/abm.v92iS2.12672