Figueira-Martínez , M, et al. “NEUROMUSCULAR EFFECTS OF ULTRASOUND-GUIDED PERCUTANEOUS NEUROMODULATION. A SYSTEMATIC REVIEW”. Cuestiones De Fisioterapia, vol. 51, no. 1, Feb. 2022, pp. 63-75, http://cuestionesdefisioterapia.es/index.php/cf/article/view/63.