| AOA | American Osteopathic Association; Administration on Aging; Alpha Omega Alpha Honor Society; American... |
|---|---|
| AOR | Alvarado Orthopedic Research [instruments]; auditory oculogyric reflex |
| AOSSM | American Orthopedic Society for Sports Medicine |
| OE | on examination; order entry [system]; orofacial cleft; orthopedic examination; otitis externa; out-s... |
| ON | occipitonuchal; office nurse; onlay; optic nerve; orthopedic nurse; osteonecrosis; osteonectin; over... |