| Abbreviations | Meaning |
 | NHLBI-ICD | National Heart, Lung And Blood Institute Implantable Cardioverter Defibrillator [trial] |
 | CHD | Cyanotic Heart Disease |
 | SHVRC | Shiley Heart Valve Research Center [project] |
 | HHS | Helsinki Heart Study |
 | AHF | Acute Heart Failure; American Health Foundation; American Hepatic Foundation; American Hospital Formulary |
 | CHOICES | Cancer, Heart Disease, Osteoporosis Interventions, And Community Evaluation Studies |
 | VHD | Ventricular Heart Disease |
 | NHLBI-PTCA | National Heart, Lung And Blood Institute Percutaneous Transluminal Coronary Angioplasty [registry] |
 | LIHFE | Living With Heart Failure [questionnaire] |
 | OHD | Hydroxylase Deficiency; Hydroxyvitamin D; Office Of Human Development; Ondine-Hirschsprung Disease; Organic Heart Disease |
 | SOM | Sustained Outward Movement [heart] |
 | CHS | Copenhagen City Heart Study |
 | HDP | Heart Disease Program [computerized Diagnosis]; Hexose Diphosphate; High-density Polyethylene; Hydrogen Diphosphonate; Hydroxydimethylpyrimidine |
 | FHR | Familial Hypophosphatemic Rickets; Fetal Heart Rate |
 | CHF-STAT | Congestive Heart Failure-Survival Trial Of Antiarrhythmic Therapy |