Duration of frequent or severe respiratory tract infection in adults before diagnosis of IgG subclass deficiency

• James Barton ,

  Contributed equally to this work with: James Barton, Clayborn Barton, Luigi Bertoli

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: ironmd@isp.com

  Affiliations Southern Iron Disorders Center, Birmingham, Alabama, United States of America, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America, Department of Medicine, Brookwood Medical Center, Birmingham, Alabama, United States of America

  http://orcid.org/0000-0003-2876-8276

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• Clayborn Barton ,

  Contributed equally to this work with: James Barton, Clayborn Barton, Luigi Bertoli

  Roles Data curation, Formal analysis, Software, Validation, Writing – review & editing

  Affiliation Southern Iron Disorders Center, Birmingham, Alabama, United States of America

  ⨯
• Luigi Bertoli

  Contributed equally to this work with: James Barton, Clayborn Barton, Luigi Bertoli

  Roles Conceptualization, Investigation, Methodology, Resources, Writing – review & editing

  Affiliations Southern Iron Disorders Center, Birmingham, Alabama, United States of America, Department of Medicine, Brookwood Medical Center, Birmingham, Alabama, United States of America

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