Figure 2.
Flow chart of the literature search and study selection process in a systematic review of the literature on the relationship between BDNF and resistance to depression treatment. Articles published up to December 2022.
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.