PT - JOURNAL ARTICLE AU - Zupin, Luisa AU - Fontana, Francesco AU - Clemente, Libera AU - Boschian-Bailo, Pierino AU - Ruscio, Maurizio AU - Crovella, Sergio TI - Persistent viral infectivity after 27 days from COVID-19 symptoms onset AID - 10.1136/jclinpath-2021-207394 DP - 2021 Jul 19 TA - Journal of Clinical Pathology PG - jclinpath-2021-207394 4099 - http://jcp.bmj.com/content/early/2021/07/19/jclinpath-2021-207394.short 4100 - http://jcp.bmj.com/content/early/2021/07/19/jclinpath-2021-207394.full