| BPCS | back pain classification scale |
|---|---|
| BRAMS | Bech-Rafaelson melancholia scale |
| BRMS | Bech-Rafaelsen melancholia scale |
| BRS | behavior rating scale; battered root syndrome; Bibliographic Retrieval Services; British Roentgen So... |
| BSC | bedside commode; bedside care; bench scale calorimeter; bile salt concentration; Biological Stain Co... |
| ISO | International Standard Organisation |
|---|---|
| ISAAC | International Study of Asthma and Allergies In Childhood |
| ISIS-2 | International Study of Infarct Survival |
| IUATLD | International Union Against Tuberculosis and Lung Disease |
| IUPAC | International Union of Pure and Applied Chemistry |