Patient(32) antibody(16) Treatment(13) leukemia(12) patients(12) Vaccine(12) vaccination(11) treated(10) dose(10) anti-CD20(10) disease(9) administration(9) thrombotic(9) lymphoma(8) develop(7) CD20(7) IgG(7) humoral(7) Analysis(7) Cohort(7) patients treated(7) second dose(7) mRNA(7) serological response(7) anti-SARS-CoV-2 vaccination(7) monoclonal antibodies(6) Efficacy(6) COVID-19(6) Influenza(6) outcome(6)