Figure 4.
Trial profile. GP = general practitioner; TKR = total knee replacement. (Hay et al. BMJ online Nov 11, 2006 p3)
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.