| MRL | medical records librarian; Medical Research Laboratory |
|---|---|
| MRT | magnetic resonance tomography; maximum relaxation time; median range score; median reaction time; me... |
| SERVHEL | Service and Health Records |
| VR | right arm [electrode]; valve replacement; variable ratio; vascular resistance; venous reflux; venous... |
| AAAS | American Association for the Advancement of Science |