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Pischik, E., Bulyanitsa, A., Kazakov, V. et al. Clinical features predictive of a poor prognosis in acute porphyria. J Neurol 251, 1538–1541 (2004). https://doi.org/10.1007/s00415-004-0584-z
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DOI: https://doi.org/10.1007/s00415-004-0584-z