| occl | occlusion, occlusive |
|---|---|
| OT | objective test; oblique talus; occlusion time; occupational therapist, occupational therapy; ocular ... |
| PAO | peak acid output; peripheral airway obstruction; plasma amine oxidase; polyamine oxidase; pulmonary ... |
| PAo | airway opening pressure; ascending aortic pressure; pulmonary artery occlusion pressure |
| PAOP | pulmonary artery occlusion pressure |