Soeroto, A. Y., Y. Hartantri, J. E. Perkusi, F. Ferdian, U. Rehimat, and H. Suryadinata. “Report of Two COVID-19 ARDS (CARDS) Cases Who Survived Without Intubation and Mechanical Ventilation”. Acta Medica Indonesiana, vol. 52, no. 3, Oct. 2020, p. 274, http://www.actamedindones.org/index.php/ijim/article/view/1477.