RT Journal Article SR Electronic(1) A1 Twisselmann, B YR 2002 T1 Antiretroviral combination therapy JF Weekly releases (1997–2007) VO 6 IS 14 SP 2112 OP DO https://doi.org/10.2807/esw.06.14.02112-en UL https://www.eurosurveillance.org/content/10.2807/esw.06.14.02112-en