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.
Linear regression distribution of OD492 data of recombinant antigens H49, JL7, A13, B13, JL8, and 1F8 and epimastigote extract (Epi) in sera from chagasic patients and correlation coefficient (r) values for group 1 (Argentina, Bolivia, Brazil, and Chile) (circles), group 2 (Colombia and Venezuela) (squares), and group 3 (El Salvador, Guatemala, and Honduras) (triangles).
