| AAPP | American Academy on Physician and Patient |
|---|---|
| AAPS | American Association of Plastic Surgeons; Arizona Articulation Proficiency Scale; Association of Ame... |
| AASK | African American Study of Kidney Diseases and Hypertension Pilot Study |
| A&B | apnea and bradycardia |
| ABBQ | Acquired Immunodeficiency Syndrome Beliefs and Behavior Questionnaire |