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Kawamura, T., Kinoshita, M., Iwasaki, Y. et al. Low-dose dexamethasone suppression test in Japanese patients with Parkinson's disease. J Neurol 234, 264–265 (1987). https://doi.org/10.1007/BF00618264
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DOI: https://doi.org/10.1007/BF00618264