Four SARS-CoV-2 vaccine doses or hybrid immunity in patients on immunosuppressive therapies: a Norwegian cohort study

K. H. Bjørlykke, Hilde S Ørbo, Anne Therese Tveter, Ingrid Jyssum, Joseph Sexton, Trung Tran, Ingrid Christensen, Grete Birkeland Kro, Tore K Kvien, Jørgen Jahnsen, Ludvig A. Munthe, Adity Chopra, David J. Warren, Siri Mjaaland, Espen A. Haavardsholm, Gunnveig Grødeland, Sella Aarrestad Provan, John Torgils Vaage, Silje Watterdal Syversen, Guro Løvik Goll, Kristin Kaasen Jørgensen