| CAO | chronic airway obstruction; coronary artery obstruction |
|---|---|
| SAO | small airway obstruction; splanchnic artery occlusion; subvalvular aortic obstruction |
| UTO | upper tibial osteotomy; urinary tract obstruction |
| UAP | unlicensed assistive personnel; unstable angina pectoris; urinary acid phosphatase; urinary alkaline... |
| UCP | uncoupling protein; urinary coproporphyrin; urinary C-peptide |