Seroconversion Rates After the Second COVID-19 Vaccination in Patients With Systemic Light Chain (AL) amyloidosis. Issue 3 (15th March 2022) - Liebers, Nora; Schönland, Stefan O.; Speer, Claudius; Edelmann, Dominic; Schnitzler, Paul; Kräusslich, Hans-Georg; Mueller-Tidow, Carsten; Hegenbart, Ute; Dietrich, Sascha