False negative results on PCR for SARS-COV-2 using nasopharyngeal swab.
Yu KusakaKasumi TsukamotoHiroki FujiwaraRyusaku HosoyaShinya FujiiKenjiro SatoKatsuaki YazawaTakehiko ObaTakashi KumagaiSusumu IsogaiPublished in: Infectious diseases (London, England) (2021)