VA contracts with the Institute of Medicine (IOM) of the National Academy of Sciences, a non-governmental organization, to scientifically review evidence on the long-term health
Agent Purple is the code name for a powerful herbicide and defoliant used by the U.S. military in their herbicidal warfare program during the Vietnam War.
Please be patient as we build this section of our website. Epigenetics literally means “above” or “on top of” genetics. It refers to external modifications