http://www.heart.org

http://www.parentheartwatch.org

http:/www.matthewkrugfoundation.org

http:/www.gregaed.org

http://www.anthonybates.org/anthonybatesfoundation

http:/www.childrenscardiomyopathy.org

http://www.4hcm.org/hcm/overview/3106.html