K M Fowle

Three-dimensional surface area of the aortic valve orifice by three-dimensional echocardiography: clinical validation of a novel index for assessment of aortic stenosis.

T. Abraham, D. Kitzman, S. Ge, 1998, American heart journal.

Feasibility, accuracy, and incremental value of intraoperative three-dimensional transesophageal echocardiography in valve surgery.

P E Lantz, T. Abraham, D. Kitzman, 1997, The American journal of cardiology.