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.
Effect of time of day of exposure to UVB on skin carcinogenesis (visual diagnosis) in SKH-1 hairless mice. (A) Physical appearance of representatives of the three experimental groups 23 wk after initiation of irradiation. (B) Kaplan–Meier analysis of tumor-free survival. (C) Average number of tumors per mouse following initiation of UV treatments. (D) Average maximal tumor area per mouse in the AM and PM groups.
