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Article
Peer-Review Record

Temporal Association of Reduced Serum Vitamin D with COVID-19 Infection: Two Single-Institution Case–Control Studies

Nutrients 2022, 14(13), 2757; https://doi.org/10.3390/nu14132757
by Diviya Gupta †, Sahit Menon †, Michael H. Criqui and Bryan K. Sun *
Nutrients 2022, 14(13), 2757; https://doi.org/10.3390/nu14132757
Submission received: 19 June 2022 / Accepted: 28 June 2022 / Published: 2 July 2022

Round 1

Reviewer 1 Report

The article is very well written and I have no comments.

I suggest it be published

Reviewer 2 Report

Work well prepared. It accurately indicates the critical points and sources of discrepancies in the research conducted so far on the direct role of vitamin D supplementation in COVID-19 infections. The analysis carried out takes into account a wide range of strengths and weaknesses of the study. The results are not spectacular, but statistically significant. Regardless of expectations, the work is yet another one that confirms the relationship of vitamin D to COVID-19 infections.

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