Corrigendum: Coronavirus Disease-2019 Survival in Mexico: A Cohort Study on the Interaction of the Associated Factors - Horacio Márquez-González; Jorge F. Méndez-Galván; Alfonso Reyes-López; Miguel Klünder-Klünder; Rodolfo Jiménez-Juárez; Juan Garduño-Espinosa; Fortino Solórzano-Santos (Frontiers Media S.A., 2021)