| ASCAo | ascending aorta |
|---|---|
| ASCH | American Society of Clinical Hypnosis |
| ASCI | acute spinal cord injury; American Society for Clinical Investigation |
| ASCII | American Standard Code for Information Interchange |
| ASCLT | American Society of Clinical Laboratory Technicians |
| ASCMS | American Society of Contemporary Medicine and Surgery |
| ASCO | American Society of Clinical Oncology; American Society of Contemporary Ophthalmology |
| ASCOT | a severity characterization of trauma |
| ASCP | American Society of Clinical Pathologists; American Society of Consulting Pharmacists |
| ASCR | American Society of Chiropodical Roentgenology |