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Naderi, M., Karimi, R. & Sabour, S. Validation of risk prediction tools in elderly patients who initiate dialysis: methodological issues. Int Urol Nephrol 51, 1675–1676 (2019). https://doi.org/10.1007/s11255-019-02213-2
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DOI: https://doi.org/10.1007/s11255-019-02213-2