Epidemiological surveillance for the spread of HIV infection. Foreword.
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D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000517:prevention & control; D014943:Global Health; D015658:HIV Infections / Q000453:epidemiology* / Q000517:prevention & control; D015497:HIV-1; D006801:Humans; D011159:Population Surveillance