Value of Two-Dimensional Echocardiography in the Identification of Pulmonary Hypertension in Chronic Obstructive Lung Disease
1988 ◽
Vol 2
(4-5)
◽
pp. 277-281
◽
2004 ◽
Vol 97
(2)
◽
pp. 187-192
◽
1989 ◽
Vol 9
(10)
◽
pp. 393