Ammonia Levels After Transjugular Intrahepatic Portosystemic Shunt Insertion Identify Patients at High Risk of Hepatic Encephalopathy. - Labenz C; Schmidtke L; Pitton MB; Galle PR; Schleicher EM; Gairing SJ (Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 2026)