Chacon Vargas, Katherine Lilibeth, and Luz Aracely Castillo Cuya. “The Importance of Detecting the SARS-CoV-2 Virus by Means of the Polymerase Chain Reaction (PCR) Test in Undergraduate Students of Health Sciences”. Anales De La Facultad De Medicina, vol. 84, no. 1, Jan. 2023, pp. 126-7, https://doi.org/10.15381/anales.v84i1.24191.