“Microscopic imaging of bronchoalveolar fluids of COVID-19 positive intubated patients reveals the different level of SARS-CoV-2 infection on oral squamosal epithelial cells” (2023) Indian Journal of Biochemistry and Biophysics (IJBB), 58(3), pp. 196–207. doi:10.56042/ijbb.v58i3.50428.