| Abbreviations | Meaning |
 | HR | Heart Rate |
 | RK | [heart Function] Restitution Constant |
 | DRFS | Dundee Rank Factor Score [risk Factors In Coronary Heart Disease] |
 | FHH | Familial Hypocalciuric Hypercalcemia; Fawn-hooded Hypertensive [rat]; Fetal Heart Heard |
 | UD-AHF | UD-CG 115 BS In Acute Heart Failure [study] |
 | HT | Height Of Heart; Heterozygote; Hyperopia, Total; Hypothalamus |
 | HB | Heart Block |
 | MHFT | Munich Mild Heart Failure Trial |
 | SAHS | San Antonio Heart Study; Sleep Apnea-hypersomnolence [syndrome] |
 | HW | Half-width; Healing Well; Heart Weight; Hypertriglyceridemic Waist |
 | HBP | Heartbeat Period; Hepatic Binding Protein; High Blood Pressure; Hospital-based Practice |
 | RPP | Heart Rate-systolic Blood Pressure Product; Rate-pressure Produce; Retropubic Prostatectomy |
 | SHS | Sayre Head Sling; Sheep Hemolysate Supernatant; Strong Heart Study; Sutterland-Haan Syndrome |
 | ISHLT | The International Society For Heart And Lung Transplantation |
 | MLCCHF | Multicenter Lisinopril Captopril Congestive Heart Failure [study] |