An official website of the United States government
Here's how you know
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.
Cartoon of the Fz feedback loop proposed by Tree et al. and Amonlirdviman et al.[71, 97](bottom). A cartoon of a possible mechanism for Fj, Ds and Ft function that biases Fz feedback loop function is also shown (top). Pale symbols represent species with reduced concentration.