| LR | labeled release; laboratory references; laboratory report; labor room; lactated Ringer [solution]; l... |
|---|---|
| SR | sarcoplasmic reticulum; saturation recovery; scanning radiometer; screen; secretion rate; sedimentat... |
| SRT | sedimentation rate test; simple reaction time; sinus node recovery time; sitting root test; speech r... |
| AAR | active avoidance reaction; acute articular rheumatism; antigen-antiglobulin reaction |
| APR | abdominoperineal resection; absolute proximal reabsorption; acute phase reaction or reactant; amebic... |