COVID-19(16) Patient(13) Cancer(8) SARS-CoV-2(7) COVID‐19(7) Chemotherapy(7) risk(6) coronavirus(6) Tumor(5) patients treated(5) 95% confidence interval(5) COVID‐19 infection(5) Vaccine(5) Evidence(5) review(5) Treatment(5) Patients with cancer(5) coronavirus disease(5) Coronavirus disease 2019(5) pandemic(4) outcome(4) reported(4) cancers(4) National(4) Positive test(3) identify(3) Hematologic malignancy(3) significant difference(3) Efficacy(3) hematological(3)