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.
The total counts presented are the counts of patients in the specific treatment group who attended the specific visit. These total counts are used as the denominator for the percentages. Error bars represent 95% CIs. vPDT indicates verteporfin photodynamic therapy.
