Recent trends in Pneumocystis carinii pneumonia as AIDS-defining disease in nine European countries.
Hoover
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D017088:AIDS-Related Opportunistic Infections / Q000453:epidemiology*; D005060:Europe / Q000453:epidemiology; D015528:HIV Seroprevalence / Q000639:trends*; D006801:Humans; D015994:Incidence; D011020:Pneumonia, Pneumocystis / Q000453:epidemiology*; D012307:Risk Factors