Regular use of sunscreen on vitamin D levels.
Holick
M F
MF
Matsuoka
L Y
LY
Wortsman
J
J
D006801:Humans; D006887:Hydroxycholecalciferols / Q000097:blood; D013473:Sunscreening Agents / Q000494:pharmacology*; D014807:Vitamin D / Q000097:blood*
D006887:Hydroxycholecalciferols; D013473:Sunscreening Agents; D014807:Vitamin D