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Kaplan–Meier plot of PFS in stage Hi-CIA CCA versus stage BIB-CIV CCA.
Note: The 5-year PFS of patients with stage I-IIA CCA is significantly better than that of those with stage IIB-IVB CCA (81.5% versus 40.0%, P=0.003).
Abbreviations: PFS, progression-free survival; CCA, clear cell adenocarcinoma.
