Ultrasound Evaluation of Onset Core Muscle Activity in Subjects with Non-Specific Lower Back Pain and Without Lower Back Pain: An Observational Case?Control Study - Cervera-Cano, M.; Valcárcel-Linares, D.; Fernández-Carnero, S.; López-González, L.; Lázaro-Navas, I.; Pecos-Martin, D. (Diagnostics, 2024)