Variation in plasma 25-hydroxyvitamin D2 and D3 in normal pregnancy with gestational age, sampling season, and complications: A longitudinal cohort study

• Astrid Bakke Orvik,

  Roles Data curation, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Department of Gynecology and Obstetrics, Copenhagen University Hospital Holbæk, Holbæk, Denmark

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• Malene Rohr Andersen,

  Roles Conceptualization, Formal analysis, Project administration, Writing – original draft

  Affiliation Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Hellerup, Denmark

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• Palle Skov Bratholm,

  Roles Methodology, Writing – original draft, Writing – review & editing

  Affiliation Department of Clinical Biochemistry, Copenhagen University Hospital Holbæk, Holbæk, Denmark

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• Katrine Kaare Hedengran,

  Roles Conceptualization, Writing – original draft

  Affiliation Department of Gynecology and Obstetrics, Copenhagen University Hospital Nordsjælland, Hillerød, Denmark

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• Christian Ritz,

  Roles Formal analysis, Software, Validation, Writing – original draft

  Affiliation Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark

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• Steen Stender,

  Roles Conceptualization, Supervision, Writing – original draft, Writing – review & editing

  Affiliation Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark

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• Pal Bela Szecsi

  Roles Conceptualization, Project administration, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: psz@regionsjaelland.dk

  Affiliation Department of Clinical Biochemistry, Copenhagen University Hospital Holbæk, Holbæk, Denmark

  http://orcid.org/0000-0003-3446-0411

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