bibliographicCitation |
Ge Z, Zhang Y, Kang W, Fan D, An F. Noninvasive evaluation of interventricular pressure gradient across ventricular septal defect: a simultaneous study of Doppler echocardiography and cardiac catheterization. Am Heart J. 1992 Jul;124(1):176–82. doi: 10.1016/0002-8703(92)90938-r. PMID: 1615803. |