www.heart.arizona.edu (for inquiries about the Sarver Heart Center at the University of Arizona in Tucson, AZ)

www.syncardia.com (artificial heart news)

www.sca-aware.org (Sudden Cardiac Arrest Foundation)

www.parentheartwatch.org (Parent Heart Watch)

www.medtronic.com (ICD information)

www.nsgc.org (National Society of Genetic Counselors)

Sudden Arrhythmia Death Syndrome (SADS)

www.hopkinsmedicine.org (Johns Hopkins)