Why we don't know the answer may be more important than the specific question.
Allan S
AS
Jaffe
Fred S
FS
Apple
Luciano
L
Babuin
D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D006353:Heart-Assist Devices; D006801:Humans; D007676:Kidney Failure, Chronic / Q000150:complications / Q000378:metabolism; D020097:Natriuretic Peptide, Brain / Q000378:metabolism*; D014336:Troponin / Q000378:metabolism; D018487:Ventricular Dysfunction, Left / Q000150:complications / Q000378:metabolism / Q000628:therapy*
D014336:Troponin; D020097:Natriuretic Peptide, Brain