| LAA | left atrial appendage; left atrial area; leukemia-associated antigen; leukocyte ascorbic acid |
|---|---|
| OAAD | ovarian ascorbic acid depletion |
| PA | panic attack; pantothenic acid; paralysis agitans; paranoia; passive aggressive; pathology; patient'... |
| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |
| OET | oral endotracheal tube; oral esophageal tube |