No significant association between vitamin D and COVID-19: A retrospective study from a northern Italian hospital
Davide Ferrari; Massimo Locatelli · 2020 · International Journal for Vitamin and Nutrition Research
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Abstract. The world is currently overwhelmed by a novel coronavirus disease (COVID-19). Clinically, COVID-19 shows a broad range of manifestations: from asymptomatic to severe and possibly lethal interstitial pneumonia. Several studies…
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Metadata source: OpenAlex · DOI 10.1024/0300-9831/a000687