Heart failure | National heart, Lung, and Blood Institute (NHLBI) website. [Internet]. 2019 [Cited 28 June 2019]. Available athttps://www.nhlbi.nih.gov/health-topics/heart-failureWhat is Heart Failure? | American Heart Association website. [Internet]. 2017 [Cited 28 June 2019]. Available athttps://www.heart.org/en/health-topics/heart-failure/what-is-heart-failureTypes of Heart Failure | American Heart Association website. [Internet]. 2017 [Cited 28 June 2019]. Available athttps://www.heart.org/en/health-topics/heart-failure/what-is-heart-failure/types-of-heart-failureWarning Signs of Heart Failure | American Heart Association website. [Internet]. 2017 [Cited 28 June 2019]. Available athttps://www.heart.org/en/health-topics/heart-failure/warning-signs-of-heart-failureCommon Tests for Heart Failure | American Heart Association website. [Internet]. 2017 [Cited 28 June 2019]. Available athttps://www.heart.org/en/health-topics/heart-failure/diagnosing-heart-failure/common-tests-for-heart-fa