| Abbreviations | Meaning |
 | APA | Action Potential Amplitude; Aldosterone-producing Adenoma; Ambulatory Pediatric Association; American Pancreatic Association; American Pharmaceutic Association |
| OSUK | Ophthalmological Society Of The United Kingdom |
| AACCN | American Association Of Critical Care Nurses |
| ACLD | Association For Children With Learning Disabilities |
| NAHA | National Association Of Health Authorities |
| AOD | Academy Of Oral Dynamics |
| NYHA | New York Heart Association |
| MEB | Medical Evaluation Board; Muscle-eye-brain [disease] |
| APHA | American Pharmaceutical Association |
| CCMG | Canadian College Of Medical Geneticists |
| FRCSED | Fellow Of The Royal College Of Surgeons Of Edinburgh |
| EMRA | Emergency Medicine Residents Association |
| EAS | Edinburgh Artery Study; Emergency Ambulance Service; Endarterectomized Aortic Segment; European Atherosclerosis Society |
| AOIR | Association Of Internet Researchers |
| NARS | National Acupuncture Research Society |
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