INTRAEXAMINER RELIABILITY OF DETECTING THE CONTRACTION OF SUPERFICIAL CERVICAL FLEXOR MUSCLES DURING CRANIO-CERVICAL FLEXION TEST (M. Malo-Urriés, C. Hidalgo-García, P. Esteban-Peirat, J. Esteban-Pérez, R. Martínez-Torres, & M. Cuenca-Vela , Trans.). (2016). Cuestiones De Fisioterapia, 45(3), 16-21. https://cuestionesdefisioterapia.com/index.php/es/article/view/199