6Valentinuzzi M E, Geddes L A, Baker L E. A simple mathematical derivation of the stewart-hamilton formula for the determination of cardiac output [ J ]. Med & boil Engng, 1969, (7) :277 - 282.
7Lynch J, Kaemmerer H. Comparison of a modified Fick method with thermodilution for determining cardiac output in critically ill patients on mechanical ventilation [ J ]. Intensive Care Med, 1990, ( 16 ) :248 - 251.
