- American Heart Association: Tetralogy of Fallot
 - Article describing the key features, treatments, and care for the congenital heart disease tetralogy of fallot. From the American Heart Association. - eMedicine: Tetralogy of Fallot
- Comprehensive information about one of the most common congenital heart disorders. Includes disease information, indications, relevant anatomy, contraindications, and treatment.
- Heart Information Center: Tetralogy of Fallot
- Article on tetralogy of fallot heart defects, definition of cyanosis, and treatment information. From the Texas Heart Institute at St. Luke's Epsicopal Hospital, Texas.
- HeartPoint: Tetralogy of Fallot
- Shows a picture diagram of the normal heart versus the heart of a person with tetralogy of fallot bearing four abnormalities.
- Hope for Henry Foundation
- Dedicated to educating people about Fanconi anemia (FA), a genetic blood deficiency that can lead to the heart defect known as tetralogy of fallot.
- Mayo Clinic: Tetralogy of Fallot Treatment
- Information about the diagnosis of and treatment options for Tetralogy of Fallot, which causes poorly oxygenated blood, at Mayo Clinic.
- NIH: Tetralogy of Fallot
- Provides a basic introduction to the defects, causes, and symptoms of the congenital heart disease known as tetralogy of fallot. From the National Heart, Lung, and Blood Institute.
- Sudden Death and Tetralogy of Fallot
- Article that examines causes and factors of late sudden cardiac death in postoperative tetralogy of fallot patients. Circulated by the American Heart Association.
- Tetralogy Clinical Features
- Provides an overview of the clinical features of tetralogy of fallot, tet spells, and the appearance of ECG waves and echocardiograms in tetralogy patients.
- Tetralogy of Fallot
- Includes signs and symptoms, diagnosis, treatment, and treatment results for tetralogy of fallot. Also contains a Flash movie and graphic summary detailing heart defects of this cardiac anomaly.
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