title: Classification of primary immunodeficiency diseases by the International Union of Immunological Societies (IUIS) Expert Committee on Primary Immunodeficiency 2011.
authors.affiliation: Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK. helen.chapel@ndm.ox.ac.uk
authors.forename: H
authors.initials: H
authors.lastname: Chapel
mesh_terms: D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000145:classification* / Q000276:immunology; D012958:Societies, Scientific