| AFCR | American Federation for Clinical Research |
|---|---|
| AIDSDRUGS | clinical trials of acquired immunodeficiency drugs [MEDLARS data base] |
| AIDSTRIALS | clinical trials of acquired immunodeficiency syndrome drugs [MEDLARS data base] |
| ASCH | American Society of Clinical Hypnosis |
| ASCI | acute spinal cord injury; American Society for Clinical Investigation |