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.
Note: The exclusion numbers provided are not mutually exclusive; * = missing data includes demographic and clinical variables (i.e., race, education, depressed mood) and complaint status at last clinical visit.
