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Pre-emptive TIPS protocol. TIPS, transjugular intrahepatic portosystemic shunt; CFLD, cystic fibrosis liver disease; US, ultrasound; AST, aspartate aminotransferase; ALT, alanine aminotransferase; GGT, gamma-glutamyl transferase; PHT, portal hypertension; PPG, portosystemic pressure gradient.
