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.
Transition rates vs PMA. Transitions are shown from B1 (a), B2 (b), B3 (c), B4 (d), and A (e) into B1 (circles), B2 (triangles), B3 (plusses), B4 (crosses), and A (diamonds) as a function of PMA. The percentage of time spent in each state is shown in (f) as a function of PMA. Segments above and below each symbol identify the 95% confidence interval and are sometimes smaller than the symbol.
