American Heart Association
The American Heart Association (AHA) is a non-profit organization in the United States that funds cardiovascular medical research, educates consumers on healthy living and fosters appropriate cardiac care in an effort to reduce disability and deaths caused by cardiovascular disease and stroke. Originally formed in New York City in 1924 as the Association for the Prevention and Relief of Heart Disease, it is currently headquartered in Dallas, Texas. The American Heart Association is a national voluntary health agency.
Heart Rhythm Society
The Heart Rhythm Society is an international non-profit organization that promotes education and advocacy for cardiac arrhythmia professionals and patients. The society was founded in 1979 and counted 5,100 members from over 70 countries as of January 2009. The official journal of the Heart Rhythm Society is Heart"Rhythm", which provides readers scientific developments devoted to arrhythmias, devices, and cardiovascular electrophysiology. The Heart Rhythm Society is headquartered in Washington, DC, USA.