RT Journal Article SR Electronic T1 Antiretroviral combination therapy markedly reduces risk of heterosexual HIV-1 transmission JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 95 OP 96 DO 10.1136/ebmed.2011.100278 VO 17 IS 3 A1 Lichterfeld, Mathias A1 Rosenberg, Eric S YR 2012 UL http://ebm.bmj.com/content/17/3/95.abstract AB