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Subjects
- Accidents -- mortality1
- Acquired Immunodeficiency Syndrome9
- Activities of Daily Living1
- Adolescent4
- Adult1
- Advertising as Topic7
- African Americans2
- African Americans -- statistics & numerical data1
- Aging7
- Alcohol Drinking7
- Alcoholism2
- Amblyopia3
- Americas1
- Aortic Aneurysm1
- Aphrodisiacs1
- Arteriosclerosis1
- Asbestos1
- Asthma2
- Attitude to Health1
- Austria1