[1]
K. K. D. Silva, A. J. Lopes, J. M. Jansen, and P. L. de Melo, “ Total inspiratory and expiratory impedance in patients with severe chronic obstructive pulmonary disease ”, Clinics, vol. 66, no. 12, pp. 2085–2091, Jan. 2011, doi: 10.1590/S1807-59322011001200014.