Romero-Cabello R, Romero-Feregrino R, Romero-Feregrino R, Muñoz-Cordero B, Sevilla-Fuentes S (2023) Outpatient treatment of COVID-19: an experience with 552 cases in Mexico. J Infect Dev Ctries 17:311–318. doi: 10.3855/jidc.16982