https://www.nejm.org/doi/full/10.1056/nejmoa052771
https://academic.oup.com/rheumatology/article/47/11/1617/1789081 (Oxford)
https://www.hsph.harvard.edu/nutritionsource/vitamin-d/ (Harvard)
https://www.cambridge.org/core/journals/public-health-nutrition/article/association-between-vitamin-d-concentration-and-pain-a-systematic-review-and-metaanalysis/FFCF6767DC2A95A6F87DE8DEA9413EF9 (Cambridge)
https://pubmed.ncbi.nlm.nih.gov/22422304/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4348522/
https://amazonasatual.com.br/mesmo-em-um-pais-tropical-brasileiros-apresentam-falta-de-vitamina-d/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4311532/