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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Classification and regression tree (CART) analysis. The root node was first divided based on LMR. For a high LMR, an interaction was found between CAR, age, PNI, and overall survival. For a low LMR, an interaction was found for BMI.