Sarcopenia Diagnosis: Reliability of the Ultrasound Assessment of the Tibialis Anterior Muscle as an Alternative Evaluation Tool oleh Massimiliano Leigheb, Alessandro de Sire, Matteo Colangelo, Domenico Zagaria, Federico Alberto Grassi, Ottavio Rena, Patrizio Conte, Pierluigi Neri, Alessandro Carriero, Gian Mauro Sacchetti, Fabio Penna, Giuseppina Caretti, Elisabetta Ferraro