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