RESEARCH OF DIASTOLIC AND SYSTOLIC FUNCTION OF THE LEFT VENTRICLE AT PATIENTS WITH BRONCHIAL ASTHMA - I. S. Belyakova; I. V. Sevostyanova; O. S. Polunina; V. A. Polunina; N. B. Grinberg (Кубанский научный медицинский вестник, 2014)