RT Journal Article SR Electronic T1 Correction: HHLA2 and PD-L1 co-expression predicts poor prognosis in patients with clear cell renal cell carcinoma JF Journal for ImmunoTherapy of Cancer JO J Immunother Cancer FD BMJ Publishing Group Ltd SP e000157corr1 DO 10.1136/jitc-2019-000157corr1 VO 8 IS 1 YR 2020 UL http://jitc.bmj.com/content/8/1/e000157corr1.abstract