. 2021 Jan 26;8:593491. doi: 10.3389/fpubh.2020.593491
Copyright © 2021 Clerici, Muscatello, Bai, Pavanello, Orlandi, Marchetti, Castelli, Casazza, Costantino and Podda.
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Figure 1.
Definition of true positive and false negative nasopharyngeal swabs. NP, nasopharyngeal.