D. G. Ritter

Functional assessment of the Fontan operation: combined M-mode, two-dimensional and Doppler echocardiographic studies.

D. G. Ritter, J. Seward, D. Hagler, 1984, Journal of the American College of Cardiology.

Dextrocardia: Angiocardiographic study and classification

D. G. Ritter, O. W. Kincaid, U. Squarcia, 1973 .