| ACS | acrocallosal syndrome; acrocephalosyndactyly; acute chest syndrome; acute confusional state; Alcon C... |
|---|---|
| AHS | Academy of Health Sciences; African horse sickness; alveolar hypoventilation syndrome; American Hear... |
| ARS | acquiescence response scale; adult Reye's syndrome; alcohol-related seizures; alizarin red S; Americ... |
| ASCO | American Society of Clinical Oncology; American Society of Contemporary Ophthalmology |
| ASCP | American Society of Clinical Pathologists; American Society of Consulting Pharmacists |