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Coskun, T., özalp, I., Tokatli, A. et al. Hyperphenylalaninaemia due to tetrahydrobiopterin deficiency: A report of 16 cases. J Inherit Metab Dis 16, 605–607 (1993). https://doi.org/10.1007/BF00711694
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DOI: https://doi.org/10.1007/BF00711694