| Abbreviations | Meaning |
 | PNHA | Physicians National Housestaff Association |
| ORS | Orthopaedic Research Society (also: AAOS Specialty Societies) |
| IST | International Society On Toxicology |
| ASHPA | American Society For Hospital Personnel Administration |
| SID | Society For Investigative Dermatology |
| FACA | Fellow Of The American College Of Angiology |
| CSMSD | Czech Society For Metabolic Skeletal Diseases (EFFO Member Society) |
| ASSOC | Association, Associate |
| AOMA | American Occupational Medical Association |
| JSCAS | Japan Society For Computer Aided Surgery (only Japanese) |
| ESFAS | European Society Of Foot And Ankle Surgeons |
| AOAS | American Osteopathic Academy Of Sclerotherapy |
| ACT | Antichymotrypsin; Anticoagulant Therapy; Anxiety Control Training; Artemisinin Combination Therapy [malaria]; Association Of Cytogenetic Technologists |
| NAHDO | National Association Of Health Data Organizations |
| ASCMS | American Society Of Contemporary Medicine And Surgery |
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