Flexor digitorum profundus evaluation in normal muscle mass subjects and presarcopenic patients -- a sonoelastographic cross-sectional study. - Guțiu, Roxana-Ioana; Bilous, Ana-Diana; Cozma, Iulia; Șerban, Oana; Bădărînză, Maria; Fodor, Daniela (Medical Ultrasonography, 2026)