Reliability of Sternocleidomastoid Muscle Stiffness Assessment Using Shear-Wave Elastography Under a Standardized Protocol with Novice and Experienced Examiners: An Intra- and Inter-Examiner Reliability Study - Monclús-Díez, G; Sánchez-Jorge, S; Buffet-García, J; López-Redondo, M; Vicente-Campos, D; Varol, U; Ortega-Santiago, R; Valera-Calero, JA (Medicina-Lithuania, 2026)