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.
Correlation between the overall quality ratings from the Colometer system. A: Mean endoscopist overall quality rating (ρ = 0.65, P < 0.01); B: Mean endoscopist withdrawal speed rating (ρ = 0.59, P < 0.01); C: Mean endoscopist image quality rating (ρ = 0.41, P = 0.15).
