Vitamin D Certified Assays and Participants  Centers for Disease Control and Prevention | CDC (.gov)






















Protective vitamin shots for newborns on decline  National Institutes of Health (NIH) | (.gov)







The 7 Best Vitamins & Minerals for Your Immune System  Cleveland Clinic Health Essentials



Why Newborns Need Vitamin K  Johns Hopkins Bloomberg School of Public Health









What Are the Benefits of Vitamin D?  Mass General Brigham


Monitoring Accuracy – AMP Vitamin D  Centers for Disease Control and Prevention | CDC (.gov)




Curbing Unnecessary Vitamin D Testing  NEJM Catalyst Innovations in Care Delivery



12 Foods That Help Boost Your Immune System  Cleveland Clinic Health Essentials









More parents refusing lifesaving vitamin K injection for newborns  ABC News & Headlines – Australian Broadcasting Corporation