Nicolás Padilla-Raygoza, Gilberto Flores-Vargas, Efraín Navarro-Olivos, and María de Jesús Gallardo-Luna, “Clinical Picture of SARS-Cov-2 Infection in Children in Guanajuato State, Mexico: A Recent Study ”, IDHR-V7, pp. 127–136, Nov. 2021.