| SRU | sample ratio units; side rails up; solitary rectal ulcer; structural repeating unit |
|---|---|
| SRUS | solitary rectal ulcer syndrome |
| TR | recovery time; rectal temperature; repetition time; residual tuberculin; terminal repeat; tetrazoliu... |
| ECIL | extracorporeal irradiation of lymph |
| L/P | lactate/pyruvate [ratio]; liver plasma [concentration]; lymph/plasma [ratio] |