AA: Associate of Arts
AAH: Associate in Allied Health
AAN: Associate of Arts in Nursing
AANN: American Association of Neurosciences Nurses
AANS: American Association of Neurological Surgeons
AAO: American Academy of Ophtholomology
AARP: American Association of Retired Persons
AART: American Registry for Radiologic Technologists
AAS: Associate in Applied Science
AAT: Associate of Applied Technology
AAWG: Aggregate Analysis Working Group
AB: Associate in Business
ACE: Advocate for Children with Exceptionalities
ACF: Administration for Children and Families
ACG: American College of Gastroenterology
ACLS: Advanced Cardiac Life Support
ACOH: Asian Conference of Occupational Health
AD: Alzheimer's disease
AD: associate degree
ADA: American Diabetes Association
ADA: American Dietic Association
ADA: Americans with Disabilities Act
ADC: Adult Disabled Children
ADD: Administration on Developmental Disabilities
ADD: Attention Deficit Disorder
ADE: adverse drug event
ADHD: Attention Deficit Hyperactivity Disorder
ADL: Activities of Daily Living
ADN: Associate Degree in Nursing
ADPD: Alzheimer's Disease and Parkinsons's Disease
ADR: adverse drug reaction
AERS: Adverse Event Reporting System
AFDC: Aid to Families with Dependent Children
AFI: Assets for Independence
AFL: Adolescent Family Life
AFS: Arbeitsgemeinschaft Freier Stillgruppen
AGE: Arbeitsgemeinschaft Gynäkologische Endoskopie
AHCA: Agency of Health Care Administration
AHCPR: Agency for Health Care Policy and Research
AHIC: American Health Information Community