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.
Trajectories of normalized tyrosine serum levels for all individual cases with premenstrual dysphoric disorder (PMDD) and controls. Time point 1, gonadal suppression; Time point 2, 4 weeks progesterone add-back. Average trends are represented by the bold regression line, triangles represent lower and upper quartiles and shadings standard errors
