| UFD | ultrasonic flow detector; unilateral facet dislocation |
|---|---|
| EHBF | estimated hepatic blood flow; exercise hyperemia blood flow; extrahepatic blood flow |
| MBF | medullary blood flow; muscle blood flow; myocardial blood flow |
| PBF | peripheral blod flow; placental blood flow; pulmonary blood flow |
| DTF | detector transfer function |