Figure 4From: Longitudinal quality of life analysis in a phenylketonuria cohort provided sapropterin dihydrochloride (A and B): Mean (± 1 SD) Phe tolerance (mg/day) and prescribed medical food protein (g/day) of sapropterin response groups across study visits. Clustered bars represent study visits at Baseline, 1, 4, 8, and 12 months respectively. NS = Not significant.Back to article page