Fig. 2.
AIDS study. (a) CD4+ cell counts and (b) viral load over time as a function of days, overlaid by estimated mean curves and corresponding 95% bootstrap pointwise confidence intervals.
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.