A new impedance cardiograph device for the non-invasive evaluation of cardiac output at rest and during exercise; comparison with the ”direct“ Fick method. - Charloux,A.; Lonsdorfer-Wolf,E.; Richard,R.; Lampert,E.; Oswald-Mammosser,M.; Mettauer,B.; Geny,B.; Lonsdorfer,J. (Eur J Appl Physiol, 2000)