Purnamasidhi, Cokorda Agung Wahyu, I Ketut Agus Somia, Darren Junior, Richard Christian Suteja, I Komang Hotra Adiputra, Giovanca Verentzia Purnama, I Gede Purna Weisnawa, Jerry, Putu Kintan Wulandari, Dewa Ayu Fony Prema Shanti, and I Gusti Ngurah Ariestha Satya Diksha. 2023. “Epidemiological and Clinical Features of Critical and Non-Critical Elderly COVID-19 Patients in Udayana University Academic Hospital: A Retrospective Study”. Indonesian Journal of Tropical and Infectious Disease 11 (1):27-34. https://doi.org/10.20473/ijtid.v11i1.43097.