Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Change in vitamin D levels after vitamin D supplementation (***P < 0.001). (B) Photographs showing clinical improvement in a patient with acne. Photographs showing baseline (left) and last visit (right). (C) Median percentile changes from baseline in acne lesions (*P < 0.05).
