Correlation and agreement are not always the same thing.
Walsh
F
F
Wigglesworth
D
D
Tousignant
C P
CP
D002302:Cardiac Output / Q000502:physiology*; D015150:Echocardiography, Doppler / Q000706:statistics & numerical data*; D017548:Echocardiography, Transesophageal / Q000706:statistics & numerical data*; D006801:Humans; D016031:Liver Transplantation; D013815:Thermodilution / Q000706:statistics & numerical data*