Pulcha-Ugarte, R., Pizarro-Lau, M., Gastelo-Acosta, R., & Maguiña-Vargas, C. (2020). What lessons will the covid-19 leave us? History of the new coronaviruses. Revista De La Sociedad Peruana De Medicina Interna, 33(2), 68-76. https://doi.org/10.36393/spmi.v33i2.523