Sh.Sh.Tillaeva, Z.Т.Sabirjonovna, A. A. D. “Ventilation-Perfusion Ability of The Lungs And Pulmonary Hemodynamics in The Dynamics of Treatment With Nebivolol in Bronchial Asthma With Pulmonary Hypertension”. International Journal of Scientific Research And Education, vol. 7, no. 2, Feb. 2019, http://ijsae.in/index.php/ijsae/article/view/919.