Lie, K.C., Shakinah, S., Pasaribu, A., Sinto, R. and Nainggolan, L. 2022. Observational Study on Secondary Bacterial Infection and the Use of Antibiotics in COVID-19 Patients Treated in a Tertiary Referral Hospital. Acta Medica Indonesiana. 54, 2 (Jul. 2022), 161.