Silva, K. K. D. da; Faria, A. C. D.; Lopes, A. J.; Melo, P. L. de. Within-Breath Respiratory Impedance and Airway Obstruction in Patients With Chronic Obstructive Pulmonary Disease . Clinics 2015, 70 (7), 461-469. https://doi.org/10.6061/clinics/2015(07)01.