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.
Phenylalanine (PHE) and Tyrosine (TYR) concentrations and the PHE/TYR ratio in clinically inactive patients (IA) (n = 12) and high disease activity (HDA) (n = 12). The dotted lines are the reference values in healthy children from previous studies [24,25,26]. Data are presented as means ± SEM. Significance is described as * p < 0.05.
