COVID-19(11) Treatment(9) oncology(7) Patient(6) Cancer(6) Trial(4) clinical trials(4) COVID-19 pandemic(4) disease(4) mRNA vaccines(4) overcome(3) SARS-CoV-2(3) Vaccines(3) Antigen(3) Isolation(3) platform(3) intravenous(3) approach(3) mRNA platform(3) Vaccine(3) Immunosuppression(3) therapeutic(3) optimization(3) Combination(3) indications(3) reveal(3) coronavirus disease(3) mRNA vaccine(3) RNA(3) literature(3)