Minimal Hepatic Encephalopathy is Associated with Increased Cerebral Vascular Resistance. A Transcranial Doppler Ultrasound Study oleh Francesca Romana Ponziani, Barbara Funaro, Andrea Lupascu, Maria Elena Ainora, Matteo Garcovich, Gianluigi Caracciolo, Alessandro Quadarella, Antonio Nesci, Laura Riccardi, Antonio Gasbarrini, Maurizio Pompili, Maria Assunta Zocco