| Abbreviations | Meaning |
 | HW | Half-width; Healing Well; Heart Weight; Hypertriglyceridemic Waist |
| WHT | Walsh-Hadamard Transform; Warm Heart Trial |
| CHFDT | Congestive Heart Failure Data Tool |
| HM | Heart Murmur |
| HHT | Head Halter Traction; Hereditary Hemorrhagic Telangiectasia; Heterotopic Heart Transplantation; Homoharringtonine; Hydroxyheptadecatrienoic Acid |
| BHS | Brisighella Heart Study |
| SIHDSPS | Stockholm Ischemic Heart Disease Secondary Prevention Study |
| ESCAPE | Evaluation Study Of Congestive Heart Failure And Pulmonary Artery Catheterization Effectiveness |
| UHR | Underlying Heart Rhythm |
| HAL | Heart Attacks In London [study] |
| AHD | Acute Heart Disease |
| HF | Heart Failure |
| HDH | Heart Disease History |
| HLT | Heart-lung Transplantation; High-L-leucine Transport; Human Lipotropin; Human Lymphocyte Transformation |
| STRETCH | Symptom Tolerability Response To Exercise Trial Of Candesartan Cilexetil In Patients With Heart Failure |
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