| BR | barrier reared [experimental animals]; baseline recovery; bathroom; bed rest; bedside rounds; biliru... |
|---|---|
| BRR | Bannayan-Riley-Ruvalcaba [syndrome]; baroreceptor reflex response; breathing reserve ratio |
| C&H | cocaine and heroin; coarse and harsh [breathing] |
| CPPB | continuous positive pressure breathing |
| DB&C | deep breathing and coughing |