| REG | radiation exposure guide; radioencephalogram, radioencephalography |
|---|---|
| RPG | radiation protection guide; Report Program Generator[ PC language]; retrograde pyelogram; rheoplethy... |
| DIT | Diet Induced Thermogenesis = Thermic Effect of Food = Specific Dynami... |
| FDA | Food & Drug Administration |
| IDA | 1) Imino-Diacetic Acid 2) Iron Deficiency Anemia &nb... |