Patient(16) COVID-19(13) COVID-19 pandemic(12) Colorectal cancer(12) management(11) England(10) finding(8) Care(8) proportion(8) Oxford(8) SARS-CoV-2 vaccination(8) funding(8) Cancer(8) Evidence(7) receiving(7) Treatment(7) liver(6) proportions(5) surgery(5) returned(5) Health Data Research UK(5) second wave(5) time(5) Medical Research Council(5) treated(5) reduction(5) Infection(5) expected(5) drop(5) Older(5)