Use of a new type of controlled expansion stent in the creation of Transjugular Intrahepastic Portosystemic Shunt for the treatment of severe portal hypertension. A single center experience with 1 year follow-up. Issue 1 (February 2018) - Petridis, I.; D'Antoni, A.; Pietrosi, G.; Maruzzelli, L.; Miraglia, R.; Luca, A.; Volpes, R.