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. 2021 Mar 29;197:117093. doi: 10.1016/j.watres.2021.117093

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Comparison of log transformed SARS-CoV-2 RNA concentration based on N1, N2 and E gene in the liquid fraction (left pane: A, B, C) and solid fraction (right pane: D, E, F) of wastewater samples from both SI and HO WWTPs. The lines and shadings are linear regression and 95% confidence intervals, respectively.