Islam, M. S. ., Akram, A. ., Yusuf, M. A. ., & Mahmud, S. . (2022). Comparison of Saliva sample and Nasopharyngeal Sample for the Diagnosis of COVID 19 in a Single Center in Bangladesh. Bangladesh Journal of Infectious Diseases, 9(9), S20-S23. https://doi.org/10.3329/bjid.v9i9.62611