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PFS in patients (n = 50) with metastatic or advanced gastrointestinal stromal tumor randomized to interrupt or continue imatinib therapy after 3 years of imatinib, with median follow-up of 35 months (95% CI: 33–38) after randomization [16]. Reproduced with permission from Elsevier [16].
Abbreviations: CI, confidence interval; PFS, progression-free survival.
