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Sepiapterin reductase deficiency: A Treatable Mimic of Cerebral Palsy

Sepiapterin reductase deficiency (SRD) is an under‐recognized levodopa‐responsive disorder. We describe clinical, biochemical, and molecular findings in a cohort of patients with this treatable condition. We aim to improve awareness of the phenotype and available diagnostic and therapeutic strategies to reduce delayed diagnosis or misdiagnosis, optimize management, and improve understanding of pathophysiologic mechanisms.