| AMCAS | American Medical College Application Service |
|---|---|
| AMEDS | Army Medical Service |
| AMSRDC | Army Medical Service Research and Development Command |
| ANS | acanthion; American Nutrition Society; 8-anilino-1-naphthalene-sulfonic acid; anterior nasal spine; ... |
| APHIS | Animal and Plant Health Inspection Service |
| PSA | public service announcement |
|---|---|
| USPHS | United States Public Health Service |
| MSO | management service organization |