E
Sunlight and Vitamin D: A global perspective for health
Wacker M, Holick MF • Dermato-Endocrinology • 2013
Only ~1% of solar UVB reaches earth surface (ozone absorbs 99%); deficiency linked to autoimmune diseases, cancers, CVD, infections, and type 2 diabetes
Vitamin Dsun exposuredeficiency+1 more