Balakumar, Varathagini, Paul Turner, and Siba Paul. “Cross-Sectional Survey of Viral Testing on Nasopharyngeal Aspirates by Laboratories in the UK – : Is Targeted Testing the Way Forward? ”. The Physician 6, no. 1 (November 27, 2019): c14. Accessed February 18, 2025. https://physicianjnl.net/index.php/phy/article/view/31.