TY - JOUR AU - Janssen, Lisanne M A AU - van Hout, Roeland W N M AU - de Vries, Esther AU - SIMcal Consortium PY - 2019 DO - 10.1111/sji.12763 UR - https://hdl.handle.net/10668/26290 T2 - Scandinavian journal of immunology AB - The clinical consequences of isolated decreased serum immunoglobulin (Ig)M are not sufficiently known. Therefore, it is difficult to determine the clinical policy following such a finding. Only few reported IgM-deficient patients fulfil the European... LA - en KW - primary immunodeficiency KW - primary selective IgM deficiency KW - unclassified antibody deficiency KW - Adolescent KW - Adult KW - Asymptomatic Diseases KW - B-Lymphocyte Subsets KW - Child KW - Child, Preschool KW - Female KW - Humans KW - Immunoglobulin M KW - Immunologic Deficiency Syndromes KW - Infant KW - Infant, Newborn KW - Male KW - Middle Aged KW - Respiratory Tract Infections KW - T-Lymphocyte Subsets KW - Young Adult TI - Challenges in investigating patients with isolated decreased serum IgM: The SIMcal study. TY - research article VL - 89 ER -