| AATS | American Association for Thoracic Surgery |
|---|---|
| ABOMS | American Board of Oral and Maxillofacial Surgery |
| ABSITE | American Board of Surgery In-Training Examination |
| ACGPOMS | American College of General Practitioners in Osteopathic Medicine and Surgery |
| ACO-HNS | American Council of Otolaryngology-Head and Neck Surgery |