| FRS | Fellow of the Royal Society; ferredoxin-reducing substance; first rank symptom; furosemide |
|---|---|
| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
| Fd | the amino-terminal portion of the heavy chain of an immunoglobulin molecule; ferredoxin |
| MIS | management information system; medical information service; meiosis-inducing substance; minimally in... |
| TR | recovery time; rectal temperature; repetition time; residual tuberculin; terminal repeat; tetrazoliu... |