| Abbreviations | Meaning |
 | AAAHE | American Association For The Advancement Of Health Education |
| AGS | Adrenogenital Syndrome; Alagille Syndrome; American Geriatrics Society; Audiogenic Seizures |
| NAMH | National Association For Mental Health |
| POSNA | Pediatric Orthopaedic Society Of North America (AAOS Specialty Societies) |
| NASS | National Accident Sampling System; North American Spine Society |
| IPAA | International Psychoanalytical Association |
| RACGP | Royal Australian College Of General Practitioners |
| ASC | American Society Of Cytology |
| AES | American Equilibration Society |
| ACR/NEMA | American College Of Radiology/National Electrical Manufacturers' Association [standard For Transferring Radiologic Images] |
| ISGE | International Society Of Gastroenterology |
| APA | American Psychological Association; American Psychopathological Association; American Psychotherapy Association; Aminopenicillanic Acid |
| NARS | National Acupuncture Research Society |
| AAPS | American Association Of Plastic Surgeons |
| AAMMC | American Association Of Medical Milk Commissioners |
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