Hassan E, Mohamad Mustafa NA, Salahuddin NA, Md Arepen SA. Viral Load, Detection Rate and Sensitivity of Nasopharyngeal and Oropharyngeal Swab Sampling for Diagnosis of COVID-19 . UIJ [Internet]. 2021Jun.19 [cited 2024Dec.22];33(3):35-50. Available from: https://uijournal.usim.edu.my/index.php/uij/article/view/319