Bing found the following results
Heart failure - NHS
Heart failure | British Heart Foundation - BHF
Heart failure - Symptoms - NHS
Heart failure - chronic | Health topics A to Z | CKS | NICE
Heart failure - Treatment - NHS
Chronic heart failure in adults: diagnosis and management
Heart failure - Symptoms and causes - Mayo Clinic
Living with Heart Failure (HF) - Recovery & Management - BHF
Your guide to heart failure - BHF - British Heart Foundation
What is Heart Failure? | American Heart Association