Journal Article Research Support, Non-U.S. Gov't APTX protein, human Adenosine deaminase deficiency Allotype Asymptomatic viremia Autoantibodies Autoantibody Autoimmune disease CTLA-4 Antigen CTLA4 deficiency CTLA4 protein, human Carrier Proteins Case Reports Chronic lung disease DNA double-strand break repair DNA single-strand break repair DNA, Viral DNA-Binding Proteins Delayed-onset Early-onset ataxia with ocular motor apraxia and hypoalbuminemia (EAOH) Epstein–Barr virus Gammopathy Germinal center Hypergammaglobulinemia IL2RG IPEX syndrome Immunoglobulin G Immunological abnormalities Interleukin Receptor Common gamma Subunit