RT Journal Article SR Electronic(1) A1 McGarrigle, C YR 2002 T1 United States recommends annual HIV testing for gay men JF Weekly releases (1997–2007) VO 6 IS 20 SP 2135 OP DO https://doi.org/10.2807/esw.06.20.02135-en UL https://www.eurosurveillance.org/content/10.2807/esw.06.20.02135-en