| BORR | blood oxygen release rate |
|---|---|
| BPR | blood pressure recorder; blood production rate |
| BR | barrier reared [experimental animals]; baseline recovery; bathroom; bed rest; bedside rounds; biliru... |
| BSR | basal skin resistance; blood sedimentation rate; bowel sounds regular; brain stimulation reinforceme... |
| CBR | carbonyl reductase; chemical, biological, and radiological [warfare]; chemically-bound residue; chro... |