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Adjuvant S-1 compared with observation in resected biliary tract cancer (JCOG1202, ASCOT): a multicentre, open-label, randomised, controlled, phase 3 trial

Surgical OncologyGastrointestinal OncologyMedicineBiliary CancerGastroenterologyPathologyCancer TreatmentOncologyRadiation OncologyAdjuvant S-1Cancer ResearchPhase 3