Determination of stroke volume and cardiac output during exercise: comparison of two-dimensional and Doppler echocardiography, Fick oximetry, and thermodilution.
J Christie, L M Sheldahl, F E Tristani, K B Sagar, M J Ptacin, S Wann
Circulation. 1987;76:539-547Originally published September 1, 1987
L M Sheldahl
F E Tristani
K B Sagar
M J Ptacin