Estrella-López, Blanca Cristina, Roberto Javier Aguilar-Berrezueta, and Silvio Amable Machuca-Vivar. “Challenges in the Early Diagnosis of Rheumatic Fever in Marginalized Areas of Ecuador”. Revista UGC 3, no. S1 (March 1, 2025): 92–100. Accessed October 31, 2026. https://revistacientifica.ugc.mx/index.php/rugc/article/view/103.