Know your medicines. American Heart Association. http://www.heart.org/idc/groups/heart-public/@wcm/@hcm/@mag/documents/downloadable/ucm_461208.pdf. February 2014. Accessed March 2016.
American Heart Association. Medicines Used To Treat Heart Failure. http://www.heart.org/HEARTORG/Conditions/HeartFailure/TreatmentOptionsForHeartFailure/Medications-Used-to-Treat-Heart-Failure_UCM_306342_Article.jsp#.Vu__pOIrKHs. 2016. Accessed March 2016.