Corrigendum to: Suboptimal Biological Sampling as a Probable Cause of False-Negative COVID-19 Diagnostic Test Results. (31st May 2021) - Kinloch, Natalie N; Ritchie, Gordon; Brumme, Chanson J; Dong, Winnie; Dong, Weiyan; Lawson, Tanya; Jones, R Brad; Montaner, Julio S G; Leung, Victor; Romney, Marc G; Stefanovic, Aleksandra; Matic, Nancy; et al.