Joan Korfhagen

Measurement of right and left ventricular systolic time intervals by echocardiography.

Stephen S. Hirschfeld, Richard A. Meyer, David C. Schwartz et al. · Circulation · 1975 · 171 citations

Right Ventricular Ejection, Heart Failure, Cardiovascular Disease +12

The critically ill premature infant with patent ductus arteriosus and pulmonary disease—an echocardiographic assessment

Richard E. Behrman, Barry G. Baylen, Richard A. Meyer et al. · The Journal of Pediatrics · 1975 · 72 citations

Critical Care Medicine, Neonatology, Pediatric Heart Disease +8

Left ventricular performance in the critically ill premature infant with patent ductus arteriosus and pulmonary disease.

Barry G. Baylen, Richard A. Meyer, Joan Korfhagen et al. · Circulation · 1977 · 71 citations

Percent Shortening, Heart Failure, Cardiovascular Disease +15

Long-term follow-up study after closure of secundum atrial septal defect in children: An echocardiographic study

Richard A. Meyer, Joan Korfhagen, Wesley Covitz et al. · The American Journal of Cardiology · 1982 · 46 citations

Echocardiographic Study, Pediatric Heart Disease, Pediatrics +3

The isovolumic contraction time of the left ventricle. An echographic study.

Stephen S. Hirschfeld, Richard L. Meyer, Joan Korfhagen et al. · Circulation · 1976 · 41 citations · Full text

Heart Failure, Left Ventricle, Pediatric Heart Disease +19