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- Acquired Immunodeficiency Syndrome1
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- Adolescent3
- Advertising14
- Afghanistan1
- Africa1
- Africa, Western1
- Aged8
- Air Ambulances1
- Air Pollutants -- adverse effects1
- Aircraft2
- Alexandra, Empress, consort of Nicholas II, Emperor of Russia, 1872-1918.2
- Alexandra, Princess, granddaughter of George V, King of Great Britain, 1936-.1
- Alexandra, Queen, consort of Edward VII, King of Great Britain, 1844-1925.1
- Alton Cottage Hospital.1
- Ambulances8
- Ambulatory Care1
- American Civil War10
- American National Red Cross1
- American National Red Cross.16