Sh.Sh.Tillaeva, Z.Т.Sabirjonovna, A.L. Alyavi, D.А.Rakhimova,. 2019. “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 7 (2). http://ijsae.in/index.php/ijsae/article/view/919.