Azambuja ACM, Souza MA, Ranzoni EP, Wioppiold JS, Muzykant LMP, Costa PO, Trevisan CB, Santos LJ. Volumetric incentive spirometer and positive pressure after cardiac surgery. J Resp Cardiov Phys Ther [Internet]. 2016 Sep. 19 [cited 2024 Dec. 21];4(1):21-8. Available from: https://periodicos.ufrn.br/revistadefisioterapia/article/view/7943