“Electrocardiographic Manifestations of Hospitalized Adult Patients With Coronavirus Disease 19 (COVID-19): UP-PGH DCVM ECG Study”. Acta Medica Philippina (March 5, 2025). Accessed April 5, 2025. https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/11935.