Problems with causal inference in cross-sectional studies of HIV infection.
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D015526:AIDS Dementia Complex / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D000203:Activities of Daily Living / Q000523:psychology; D015984:Causality; D003430:Cross-Sectional Studies; D006679:HIV Seropositivity / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests