Study on Clinical Value of Color Doppler Echocardiography in Diagnosis of Chronic Rheumatic Valvular Heart Disease
1989 ◽
Vol 6
(3)
◽
pp. 213-227
◽
1991 ◽
Vol 67
(2)
◽
pp. 209-211
◽
2019 ◽
Vol 14
(4)
◽
pp. 577-586
2020 ◽
Vol 67
(5)
◽
pp. 923-933
◽