F Helmcke

Two-dimensional echocardiography and Doppler color flow mapping in the diagnosis and prognosis of ventricular septal rupture.

S P Jain, N C Nanda, N. Nanda, 1990, Circulation.

Evaluation of aortic insufficiency by Doppler color flow mapping.

N C Nanda, N. Nanda, G. Perry, 1987, Journal of the American College of Cardiology.