| AIDSLINE | on-line information on acquired immunodeficiency syndrome [MEDLARS data base] |
|---|---|
| AIDSTRIALS | clinical trials of acquired immunodeficiency syndrome drugs [MEDLARS data base] |
| AVLINE | Audiovisuals On-Line [data base] |
| BAB | blood agar base |
| BASE | B27-arthritis-sacroiliitis-extra-articular features [syndrome] |