| ABEM | American Board of Emergency Medicine |
|---|---|
| ABIM | American Board of Internal Medicine |
| ABIMCE | American Board of Internal Medicine certifying examination |
| ABPM&R | American Board of Physical Medicine and Rehabilitation |
| ACFAO | American College of Foot and Ankle Orthopedics and Medicine |
| SS | slow wave sleep |
|---|---|
| SWS-2 | slow wave sleep |
| SS | synchronized sleep |