| ARL | Association of Research Libraries; average remaining lifetime |
|---|---|
| ARNMD | Association for Research in Nervous and Mental Diseases |
| ARO | Associate for Research in Ophthalmology |
| ARPANET | Advanced Research Projects Agency Network |
| BIBRA | British Industrial Biological Research Association |
| RDC | Research Diagnostic Criteria |
|---|---|
| R&D | Research and Development |
| VDRL | Veneral Disease Research Laboratory |