Vitamin D, acute respiratory infections, and Covid-19: The curse of small-size randomised trials. A critical review with meta-analysis of randomised trials

• Philippe Autier ,

  Roles Conceptualization, Data curation, Methodology, Supervision, Validation, Visualization, Writing – original draft

  * E-mail: Philippe.autier@i-pri.org

  Affiliation International Prevention Research Institute (iPRI), Bat. L’Américain, Dardilly, France

  https://orcid.org/0000-0003-1538-5321

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• Giulia Doi,

  Roles Formal analysis, Writing – review & editing

  Affiliation Department of Experimental Oncology, European Institute of Oncology, IRCCS, Milano, Italy

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• Patrick Mullie,

  Roles Conceptualization, Data curation, Formal analysis, Writing – review & editing

  Affiliations Academic Centre for General Practice, Department of Public Health and Primary Care, Catholic University Leuven, Leuven, Belgium, Belgian Centre for Evidence-Based Medicine, Cochrane Belgium, Leuven, Belgium, DG H&WB, Queen Elisabeth Barracks, Belgian Defence, Evere, Belgium

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• Patrick Vankrunkelsven,

  Roles Writing – review & editing

  Affiliations Academic Centre for General Practice, Department of Public Health and Primary Care, Catholic University Leuven, Leuven, Belgium, Belgian Centre for Evidence-Based Medicine, Cochrane Belgium, Leuven, Belgium

  https://orcid.org/0000-0003-1047-9732

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• Oriana D’Ecclesiis,

  Roles Formal analysis, Writing – review & editing

  Affiliation Department of Experimental Oncology, European Institute of Oncology, IRCCS, Milano, Italy

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• Sara Gandini

  Roles Formal analysis, Writing – review & editing

  Affiliation Department of Experimental Oncology, European Institute of Oncology, IRCCS, Milano, Italy

  https://orcid.org/0000-0002-1348-4548

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