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.
Short-term (30–120 min) time-course of intracellular ATP concentration in MCF-7 cells. Significant differences, compared with ALA-only controls, are denoted by *P<0.05, **P<0.01 for PDT-treated cells, and #P<0.05, ##P<0.01 for dark-maintained cells.
