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Table 3 AAST organ injury scale for duodenal injuries

From: Duodeno-pancreatic and extrahepatic biliary tree trauma: WSES-AAST guidelines

  1. *Advances one grade for multiple injuries up to grade III. D1—first portion of duodenum; D2—second portion of duodenum; D3—third portion of duodenum; D4—fourth portion of duodenum)