| Abbreviations | Meaning |
 | FHS | Fetal Heart Sound |
 | DHFS | Diet-Heart Feasibility Study |
 | CM | CarboMedics (heart Valves) |
 | OHS | Open Heart Surgery |
 | BRH | Benign Recurrent Hematuria; British Regional Heart [study]; Bureau Of Radiological Health |
 | HLM | Heart-lung Machine |
 | CHAOS | Cambridge Heart Antioxidant Study; Cardiovascular Disease, Hypertension And Hyperlipidemia, Adult-onset Diabetes, Obesity, And Stroke [study] |
 | BHIRS | Brain-heart Infusion And Rabbit Serum |
 | LRL | Lower [heart] Rate Limit |
 | NHAAP | National Heart Attack Alert Program |
 | AD-CHF | Acutely Decompensated Congestive Heart Failure |
 | HC | Heart Cycle |
 | ISHLT | The International Society For Heart And Lung Transplantation |
 | MHV | Magnetic Heart Vector; Middle Hepatic Vein; Mouse Hepatitis Virus; Murine Hepatitis Virus |
 | HHS | Helsinki Heart Study |