| ACOHA | American College of Osteopathic Hospital Administrators |
|---|---|
| ACOI | American College of Osteopathic Internists |
| ACOM | American College of Occupational Medicine; anterior communicating [artery] |
| ACOMS | American College of Oral and Maxillofacial Surgeons |
| ACOOG | American College of Osteopathic Obstetricians and Gynecologists |