| FAR | Federal acquisitions regulation; fractional albumin rate; fresh bone marrow |
|---|---|
| FR | failure rate; film-screen radiograph; fasciculus retroflexus; febrile reaction; feedback regulation;... |
| IRIS | integrated risk information system; interleukin regulation of immune system; International Research ... |
| BTC | basal temperature chart; body temperature chart |
| RT | radiologic technologist; radiotelemetry; radiotherapy; radium therapy; rapid tranquilization; reacti... |