AAA: Age Anaesthesia Association
AAA: American Association of Anatomists
AAAASF: American Association for Accreditation of Ambulatory Surgery Facilities
AAABEM: American Association of Acupuncture and Bio-Energetic Medicine
AAACN: American Academy of Ambulatory Care Nursing
AAAHC: Accreditation Association for Ambulatory Health Care
AAAM: Association for the Advancement of Automotive Medicine
AAAST: African Association for the Advancement of Science and Technology
AABB: American Association of Blood Banks
AABH: Association for Ambulatory Behavioral Healthcare
AABP: American Association of Bovine Practitioners
AACE: American Association of Clinical Endocrinologists
AACN: American Association of Colleges of Nursing
AACOM: American Association of Colleges of Osteopathic Medicine
AACP: American Association of Colleges of Pharmacy
AACP: American Association of Community Psychiatrists
AACPM: American Association of Colleges of Podiatric Medicine
AACPMAS: American Association of Colleges of Podiatric Medicine Application Service

AACR: American Association for Cancer Research
AADE: American Association of Dental Editors
AADE: American Association of Dental Examiners
AADS: American Association of Dental Schools
AAE: American Association of Endodontists
AAEM: American Association of Electrodiagnostic Medicine
AAEP: American Association of Equine Practitioners
AAFHV: American Association of Food Hygiene Veterinarians
AAFO: American Association for Functional Orthodontics
AAFP: American Association of Feline Practitioners
AAG: Australian Association of Gerontology
AAGBI: Association of Anaesthetists of Great Britain and Ireland
AAGHP: American Association of General Hospital Psychiatrists
AAGL: American Association of Gynecologic Laparoscopists
AAGP: American Association for Geriatric Psychiatry
AAGS: Alberta Association of General Surgeons
AAGT: Association for the Advancement of Gestalt Therapy
AAHA: American Association of Homes for the Aging

AAHAM: American Association of Health Care Administrative Management
AAHC: American Association of Healthcare Consultants
AAHD: American Association of Hospital Dentists
AAHE: American Association for Health Education