Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Proposed role of endothelial and microvascular dysfunction in HFpEF. CFR indicates coronary flow reserve; HF, heart failure; HFpEF indicates heart failure with preserved ejection fraction; IMR, index of microcirculatory resistance; NO nitric oxide.
