For citations:
Chushkin M.I., Popova L.A., Shergina E.A., Karpina N.L. The bronchodilator test in patients with airway obstruction: the responsiveness of lung function parameters. Medical alphabet. 2021;(5):57-61. (In Russ.) https://doi.org/10.33667/2078-5631-2021-5-57-61