Loading ...Low vitamin D and increased mortality – Dr. John Campbell
https://www.youtube.com/watch?v=HwNgKJ-7YWQ
Association of Serum 25-Hydroxyvitamin D Concentrations With All-Cause and Cause-Specific Mortality Among Adult Patients With Existing Cardiovascular Disease
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8496747/