| Abbreviations | Meaning |
 | BHR | Basal Heart Rate; Benign Hypertrophic Prostatitis; Borderline Hypertensive Rat; Bronchial Hyperreactivity |
| VHR | Ventricular Heart Rate |
| PHR | Parent-held Record; Peak Heart Rate; Photoreactivity |
| HHS | Hyperkinetic Heart Syndrome |
| SHD | Satellite Hemodialysis [telemedicine]; Sudden Heart Death |
| HR | Heart Rate |
| RUTH | Raloxifene Use For The Heart [study] |
| APDP | [heart] Action Potential Duration-premature Stimulus |
| LH | Left Heart |
| HD | Heart Disease |
| H1 | First [heart] Sound; Halistatin; Protium |
| OH | Open Heart [surgery] |
| CHS | Copenhagen City Heart Study |
| AHF | Acute Heart Failure |
| CCHD | Cyanotic Congenital Heart Disease |
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