| Abbreviations | Meaning |
 | BAPO | Belgian Association Of Pediatric Orthopaedics |
| ACM | Asbestos-containing Material; Association Of Computing Machinery; Automated Cardiac Flow Measurement |
| AOS | American Ophthalmological Society; American Otological Society; Anodal Opening Sound; Anterior [o]esophageal Sensor |
| NAS | National Academy Of Sciences |
| NHB | National Health Board |
| IPA | International Pharmaceutical Association |
| FCAPM | Formal College Approved Postgraduate Meeting |
| APM | Academy Of Parapsychology And Medicine |
| OAA | Old Age Assistance; Older Americans Act; Opticians Association Of America; Oxaloacetic Acid |
| LITA | Left Internal Thoracic Artery; Library And Information Technology Association |
| MURCS | Müllerian Duct Aplasia, Cervicothoracic Somite Dysostosis [association] |
| FRCSI | Fellow Of The Royal College Of Surgeons In Ireland |
| AOCPA | American Osteopathic College Of Pathologists |
| APA | American Physiotherapy Association; American Podiatric Association; American Psychiatric Association; American Psychoanalytic Association |
| CDA | Canadian Dental Association |
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