| AAP | air at atmospheric pressure; American Academy of Pediatrics; American Academy of Pedodontics; Americ... |
|---|---|
| aBP | arterial blood pressure |
| ADP | adenopathy; adenosine diphosphate; administrative psychiatry; approved drug product; area diastolic ... |
| AHP | accountable health plan or partnership; acute hemorrhagic pancreatitis; after hyperpolarization; air... |
| AIP | acute idiopathic pericarditis; acute infectious polyneuritis; acute intermittent porphyria; aldoster... |