Protocol for the unclassified primary antibody deficiency (unPAD) study: Characterization and classification of patients using the ESID online Registry

• Lisanne M. A. Janssen ,

  Contributed equally to this work with: Lisanne M. A. Janssen, Ineke C. G. M. Reijnen

  Roles Data curation, Project administration, Writing – original draft

  Affiliations Department of Tranzo, TSB, Tilburg University, Tilburg, the Netherlands, Department of Pediatrics, Amalia Children’s hospital, Nijmegen, the Netherlands

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• Ineke C. G. M. Reijnen ,

  Contributed equally to this work with: Lisanne M. A. Janssen, Ineke C. G. M. Reijnen

  Roles Data curation, Writing – original draft

  Affiliation Department of Pediatrics, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands

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• Cinzia Milito,

  Roles Data curation, Writing – review & editing

  Affiliation Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy

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• David Edgar,

  Roles Conceptualization, Writing – review & editing

  Affiliation Department of Immunology, St James’s Hospital, Dublin & (ii) Trinity College, Dublun, Ireland

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• Helen Chapel,

  Roles Conceptualization, Writing – review & editing

  Affiliation Primary Immunodeficiency Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

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• Esther de Vries ,

  Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing

  * E-mail: e.devries@tilburguniversity.edu

  Affiliations Department of Tranzo, TSB, Tilburg University, Tilburg, the Netherlands, Laboratory of Medical Microbiology and Immunology, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands

  https://orcid.org/0000-0003-4311-3550

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• the unPAD consortium