RICCĂ’, M.; RANZIERI, S.; PERUZZI, S.; VALENTE, M.; MARCHESI, F.; BALZARINI, F.; BRAGAZZI, N. L.; SIGNORELLI, C. RT-qPCR assays based on saliva rather than on nasopharyngeal swabs are possible but should be interpreted with caution: results from a systematic review and meta-analysis.: Diagnosis of SARS-CoV-2 through salivary fluids. Acta Bio Medica Atenei Parmensis, v. 91, n. 3, p. e2020025, 7 Sep. 2020.