Comparing Immunotherapy Versus Chemotherapy Alone as Second-Line Therapy for Malignant Tumors of the Biliary Tract: A Retrospective Study
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Background: Bile duct carcinoma (BTC) is an uncommon malignant tumor of the gastrointestinal tract. Management is limited after the progress of first-line treatment. Immune checkpoint inhibitors (ICIs) have been proven popular in... ...
