MeSH
AIDS Serodiagnosis /economics /psychology /statistics & Adolescent; Adult; Centers for Disease Control and Prevention (U.S.); Cost-Benefit Analysis; Counseling /economics; Diagnostic Tests, Routine /economics /psychology /statistics & Disease Transmission, Infectious /prevention & Early Diagnosis; Female; Guideline Adherence; HIV Infections /diagnosis /prevention & HIV Seropositivity /diagnosis /epidemiology; HIV Seroprevalence; Health Care Costs /statistics & Health Policy /economics; Humans; Informed Consent; Male; Middle Aged; Models, Theoretical; Nondirective Therapy /economics; Patient Acceptance of Health Care; Practice Guidelines as Topic; Public Health /economics; Risk; Risk Assessment /economics; Risk-Taking; Treatment Refusal; United States /epidemiology; control; control /psychology /transmission; numerical data; numerical data; numerical data