• InCirculation Educational resource for healthcare professionals providing access to internationally focused cardiovascular information on the internet.

• JewishHospital Jewish Hospital HealthCare Services, a regional network of more than 50 health care facilities, provides a complete array of health care services in Kentucky.

• Lifestyle Advantage from Highmark and Dr. Dean Ornish Details about the program which uses nutrition, moderate aerobic exercise, stress management and group support to reverse heart disease. Includes program sites, retreats, medicare program, and contact details.

• MDchoice.com - ECG rounds Seventeen cases with challenging ECGs to interpret.

• Michigan CardioVascular Institute Information about this regional medical center specializing in heart health.

• National Registry of CardioPulmonary Resuscitation The 'goal is to provide a centralized, efficient, consistent means for collecting and analyzing data on in-hospital resuscitations'.

• Ortivus AB A medical-technology company for advanced information management in emergency medicine with emphasis on cardiac diagnosis.

• TCTMD A source of clinical and technical information and physician education in interventional cardiology and interventional vascular medicine.

• Theheart.org Disseminates information on treating and preventing cardiovascular disorders. Its audience consists of cardiologists, allied healthcare professionals and referring physicians.

• University of Louisville - Cardiology The Division of Cardiology at University of Louisville.