Figure 1.
Declining percentage of blood donations positive for transfusion-transmissible infections (TTIs) over the period 2005–2013 in the Military Medical Academy, Belgrade, Serbia.
p: significance of the trend.
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.