Cámara-Reyes, Ramón R., Danilo Obregón- Gavilán, and Olenka Farfán-Zapata. 2021. “The Usefulness of Geographic Information Systems in Published Research on COVID-19”. Revista Médica Herediana 32 (3):185-86. https://doi.org/10.20453/rmh.v32i3.4064.