| Abbreviations | Meaning |
 | NHLI | National Heart And Lung Institute [NIH] |
| CVHD | Chronic Valvular Heart Disease |
| HLR | Heart-lung Resuscitation; Heart-to-lung Ratio; High-level Resistance |
| AHF SCENE | Advanced Heart Failure Shared Clinical Experience Network |
| HMO | Health Maintenance Organization; Heart Minute Output |
| HRRR | Heart Regular Rate And Rhythm |
| PHHP | Pawtucket Heart Health Program |
| AD-CHF | Acutely Decompensated Congestive Heart Failure |
| IKR | Rectified Potassium Current [heart Electrophysiology] |
| TNT | Treatment To New Target [study Of Effectiveness Of Atorvastatin In Coronary Heart Disease] |
| HD | Heart Disease |
| NHI | National Heart Institute; Nuclear Hepatobiliary Imaging |
| V-HEFT | Vasodilator Heart Failure Trial; Veterans Administration Heart Failure Trial |
| AHR | Antihyaluronidase Reaction; Aryl Hydrocarbon Receptor; Association For Health Records; Atrial Heart Rate |
| HTX | Heart Transplantation |
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