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Retrospective Cohort Study
Copyright: ©Author(s) 2026.
World J Gastroenterol. Jan 14, 2027; 33(2): 122338
Published online Jan 14, 2027. doi: 10.3748/wjg.122338
Figure 1
Figure 1 Study flowchart. Flowchart of patient screening, exclusion, and cohort construction. Patients with advanced pancreatic ductal adenocarcinoma and malignant distal biliary obstruction were screened. The chart shows the overall endoscopic retrograde cholangiopancreatography (ERCP) cohort and the final 30-day landmark ERCP cohort, which was further classified according to whether chemotherapy was initiated within 30 days after index ERCP. PDAC: Pancreatic ductal adenocarcinoma; MDBO: Malignant distal biliary obstruction; PTCD: Percutaneous transhepatic cholangial drainage; ERCP: Endoscopic retrograde cholangiopancreatography.


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