PT - JOURNAL ARTICLE ED - , TI - CORRECTION AID - 10.1136/sti.2006.017954.corr1 DP - 2007 Feb 01 TA - Sexually Transmitted Infections PG - 76--76 VI - 83 IP - 1 4099 - http://sti.bmj.com/content/83/1/76.4.short 4100 - http://sti.bmj.com/content/83/1/76.4.full SO - Sex Transm Infect2007 Feb 01; 83