| AAOPP | American Association of Osteopathic Postgraduate Physicians |
|---|---|
| AAP | air at atmospheric pressure; American Academy of Pediatrics; American Academy of Pedodontics; Americ... |
| AAPHP | American Association of Public Health Physicians |
| AAPS | American Association of Plastic Surgeons; Arizona Articulation Proficiency Scale; Association of Ame... |
| AASP | acute atrophic spinal paralysis; American Association of Senior Physicians; ascending aorta synchron... |