Research Article

Primary Clear Cell Adenocarcinoma of the Cervix: A Clinical Analysis of 18 Cases without Exposure to Diethylstilbestrol

Figure 2

Kaplan–Meier curve of PFS. (a) The PFS for stages I to IIA1 and stages IIA2 to IV (). (b) The PFS for tumor size <4 cm and ≥4 cm (). (c) The PFS for PLN metastasis positive and negative patients ().
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