ArticleContemporary clinical trials2021
The vitamin D for COVID-19 (VIVID) trial: A pragmatic cluster-randomized design.
Rui Wang et al.PubMed ↗Full text ↗Publisher ↗
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ArticleContemporary clinical trials2021
Rui Wang et al.PubMed ↗Full text ↗Publisher ↗
No numbers read from the abstract.