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Hyland, K., Nygaard, T.G., Trugman, J.M. et al. Oral phenylalanine loading profiles in symptomatic and asymptomatic gene carriers with dopa-responsive dystonia due to dominantly inherited GTP cyclohydrolase deficiency. J Inherit Metab Dis 22, 213–215 (1999). https://doi.org/10.1023/A:1005532610051
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DOI: https://doi.org/10.1023/A:1005532610051