Table 1.

Search strategy for heart failure biomarkers.

Set	Search
#1	TS= ((heart* or cardiac* or myocard*) near/2 (fail* or insuff*))
#2	TS= (heart* near/2 decomp*)
#3	TS= (biomarker OR “biologic marker” OR “biological marker” OR “serum marker” OR “clinical marker” OR “biochemical marker” OR “Immune marker” OR “molecule marker” OR biomarkers OR “biologic markers” OR “biological markers” OR “serum markers” OR “clinical markers” OR “biochemical markers” OR “immune markers” OR “molecule markers")
#4	#1 OR #2
#5	#3 AND #4