Gallego Izquierdo, T., Pecos-Martin, D., Lluch Girbés, E., Plaza-Manzano, G., Rodríguez Caldentey, R., Mayor Melús, R., … Falla, D. (2015). Comparison of cranio-cervical flexion training versus cervical proprioception training in patients with chronic neck pain: A randomized controlled clinical trial. Journal of Rehabilitation Medicine, 48(1), 48–55. https://doi.org/10.2340/16501977-2034