EFFICACY OF ULTRASOUND-GUIDED INTRAMUSCULAR ELECTROSTIMULATION IN CONJUNCTION WITH MOTOR CONTROL EXERCISES IN NON-SPECIFIC CHRONIC LOW BACK PAIN: A PILOT RANDOMIZED CLINICAL TRIAL. Cuestiones de Fisioterapia, [S. l.], v. 50, n. 3, p. 183–202, 2021. Disponível em: https://cuestionesdefisioterapia.com/index.php/es/article/view/65.. Acesso em: 13 sep. 2025.