| Abbreviations | Meaning |
 | ESDS | European Spinal Deformities Society |
| NMSS | National Multiple Sclerosis Society; National Mycobacterial Surveillance System [Australia And New Zealand] |
| AGA | American Goiter Association |
| AAAI | American Academy Of Allergy And Immunology; American Association Of Artificial Intelligence |
| RHB | Regional Hospital Board [UK]; Right Heart Bypass |
| MGMA | Medical Group Management Association |
| ISA | Instrument Society Of America |
| IAFF | International Association Of Fire Fighters |
| FRS | Fellow Of The Royal Society; Ferredoxin-reducing Substance; First Rank Symptom; Fragment Separator; Furosemide |
| NAHUC | National Association Of Health Unit Clerks-Coordinators |
| IAP | International Academy Of Proctology |
| AHS | Academy Of Health Sciences |
| CAP | College Of American Pathologists |
| FAPHA | Fellow Of The American Public Health Association |
| MCH | Medical College Hospital |
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