Kahnom, M., R. A. M. E. . Uddin, A. . Ghose, A. S. M. . Zahed, M. K. . Islam, R. . Karim, A. T. M. R. . Karim, S. . Ara, R. . Ahmad, M. A. I. . Chowdhury, and M. A. . Hossain. “Predictors of Duration and Demand of Oxygen Therapy in Hospitalized RT-PCR Positive COVID-19 Patients: Demand of Oxygen Therapy in Hospitalized RT-PCR Positive COVID-19 Patients”. Bangladesh Medical Research Council Bulletin, vol. 49, no. 1, Apr. 2023, pp. 75-80, doi:10.3329/bmrcb.v49i1.66754.