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.
Bland-Altman plot of total outpatients seen at each facility (health centres and health posts) per week from the SMS system and the paper system during 2011. The difference between the two measures is shown on the y-axis and the average of the two measures is shown on the x-axis.
