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Performance & clinical utility of oropharyngeal versus nasopharyngeal swabs in COVID-19. Suma Radhakrishnan1, E. Muhammed Afsal1, P. M. Anitha2, Hafees Abdullah Perumbally1, B. K. Ajitha5, Indian J Med Res 156, September 2022, pp 478-483 DOI: 10.4103/ijmr.ijmr_2275_21.