Low levels of the innate immune system proteins MASP‐2 and MAp44 in patients with common variable immunodeficiency. - Mistegaard, Clara Elbæk; Jensen, Lisbeth; Christiansen, Mette; Bjerre, Mette; Jensen, Jens Magnus Bernth; Thiel, Steffen (Scandinavian Journal of Immunology, 2022)