Echevarria-Castro, N. et al. 2021. Trends in drugs usage for COVID-19 during the first wave of the pandemic in a hospital in Lima, Peru. Revista Peruana de Medicina Experimental y Salud Pública. 38, 4 (Dec. 2021), 608–14. DOI:https://doi.org/10.17843/rpmesp.2021.384.8820.