| BPO | basal pepsin output; benzyl penicilloyl |
|---|---|
| CO | carbon monoxide; cardiac output; castor oil; casualty officer; centric occlusion; cervical orthosis;... |
| COM | chronic otitis media; College of Osteopathic Medicine; computer-output microfilm |
| COR | cardiac output recorder; comprehensive outpatient rehabilitation; conditioned orientation reflex; co... |
| COTD | cardiac output by thermodilution |