Core Synergies Measured with Ultrasound in Subjects with Chronic Non-Specific Low Back Pain and Healthy Subjects: A Systematic Review. - Maria Cervera-Cano; Luis López-González; David Valcárcel-Linares; Samuel Fernández-Carnero; Alexander Achalandabaso-Ochoa; Verónica Andrés-Sanz; Daniel Pecos-Martín (Sensors, 2022)