title: The completeness of AIDS surveillance in Europe: difficulties and new challenges.
authors: J
authors: J
authors: Castilla
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D004196:Disease Outbreaks; D005060:Europe / Q000453:epidemiology; D006306:Health Surveys; D006801:Humans; D018571:Sentinel Surveillance