Xu H

Subdivision of metachronous metastatic nasopharyngeal carcinoma based on the framework of TNM-9: A recursive partitioning analysis of real-world data

Abstract Purpose: To validate the prognostic value of the M1 category in version nine of the AJCC/UICC TNM staging system (TNM-9) in metachronous metastatic nasopharyngeal carcinoma (mmNPC) and to develop a refined M1 classification for improved risk stratification. Methods: Pati...