PT - JOURNAL ARTICLE ED - , TI - Correction: <em>IL-21 arming potentiates the anti-tumor activity of an oncolytic vaccinia virus in monotherapy and combination therapy</em> AID - 10.1136/jitc-2020-001647corr1 DP - 2021 Oct 01 TA - Journal for ImmunoTherapy of Cancer PG - e001647corr1 VI - 9 IP - 10 4099 - http://jitc.bmj.com/content/9/10/e001647corr1.short 4100 - http://jitc.bmj.com/content/9/10/e001647corr1.full SO - J Immunother Cancer2021 Oct 01; 9