AA

• abampere;

• abdominal aorta;

• acetabular anteversion;

• acetic acid;

• achievement age; active alcoholic;

• active assistive [range of motion];

• active avoidance;

• acupuncture analgesia;

• acute appendicitis;

• adenine arabinoside;

• adenylic acid;

• adjuvant arthritis;

• adrenal androgen;

• adrenocortical autoantibody;

• African American;

• aggregated albumin;

• [bacterial] aggregative adherence;

• agranulocytic angina;

• alcohol abuse;

• Alcoholics Anonymous;

• allergic alveolitis;

• alopecia areata;

• alveolo-arterial;

• aminoacetone;

• amino acid;

• aminoacyl;

• amyloid A;

• anaplastic astrocytoma;

• anti-arrhythmic agent;

• anticipatory avoidance;

• antigen aerosol;

• aortic amplitude;

• aortic aneurysm;

• aortic arch;

• aplastic anemia;

• arachidonic acid;

• arteries;

• ascending aorta;

• atlanto-axial;

• atomic absorption;

• Australia antigen;

• autoanalyzer;

• automobile accident;

• axonal arborization