Arroyo Rodríguez-Navas, A R, et al. “CYSTIC FIBROSIS: BIBLIOGRAPHIC REVIEW ON THE EFFECTIVENESS OF TREATMENT OF PHYSIOTHERAPY”. Cuestiones De Fisioterapia, vol. 40, no. 1, Feb. 2011, pp. 48-57, http://cuestionesdefisioterapia.es/index.php/cf/article/view/257.