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Overall survival time after diagnosis of the first AIDS-defining opportunistic illness (AIDS-OI) by human immunodeficiency virus (HIV) treatment era (1: pre– [ART], 1981–1986; 2: mono/dual ART, 1987–1996; and 3: combination ART [cART], 1997–2012) in San Francisco, 1981–2012. Abbreviation: ART, antiretroviral therapy.
