The R.E.N.A.L score's relevance in determining perioperative and oncological outcomes: a Middle-Eastern tertiary care center experience.

However, Figure 1 demonstrates a significant trend over time of increased use of PN for patients with low category (p = 0.015, R 2 = 0.402) and intermediate category (p = 0.016, R 2 = 0.373), but not for high category (p = 0.294, R 2 = 0.08).

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