For citations:

Bokeria L.A., Plahova V.V., Ivanitsky A.V., Gorbachevsky S.V. HIGH GRADE PULMONARY HYPERTENSION: OPPROTUNITIES OF ECHOCARDIOGRAPHY IN ASSESSING FAULTS IN CARDIAC FUNCTION AND PROGNOSIS OF THE CLINICAL COURSE. Russian Journal of Cardiology. 2001;(4):31-38. (In Russ.)