Advanced Attack Helicopter 
Apache attack helicopter 
Academy on Architecture for Health 
Aircraft Available Hours 
Army Attack Helicopter 
Associate in Allied Health 
Australian Auxiliary Hospital 
Automated Attitude Hold 
Automatic Attitude Hold 
Academy of Architecture for Health 
Action Against Hunger 
Action Attack Helicopter 
acute alcoholic hepatitis 
Ada Adoption Handbook 
adenomatous hyperplasia 
adenomatous hyperplasias 
Advanced Animal Habitat 
African Americans for Humanism 
Aktion Afrika Hilfe 
All American Harnessbreds 
Alliance for Alternatives in Healthcar… 
Aloha Airlines 
alveolar hyperplasia 
American Association for Homecare 
Analyzer alarm high 
Anandamide amidohydrolase 
Anti-Armor Helicopter 
apical hypertrophy 
Arbuckle Alternative High 
Art and Art History