increased risk(7) patients(7) Myeloma(7) analyzed(7) vaccination(7) Moderna(7) Vaccine(7) BNT162b2(7) Multiple myeloma(7) Patient(7) much lower(4) response(4) neutralizing capacity(4) Mortality(4) Pseudovirus neutralization assay(4) virus(4) induction(4) initial(4) significantly(4) were measured(4) RBD(4) Immunocompromised(4) Treatment(4) Critical(4) variant(4) nucleocapsid(4) Booster vaccine(4) implication(4) detect(4) virus-neutralizing(4)