TY - JOUR A1 - Kelly, J.A. A1 - Amirkhanian, Y.A. A1 - Kabakchieva, E. A1 - Vassileva, S. A1 - Vassilev, B. A1 - McAuliffe, T.L. A1 - DiFranceisco, W.J. A1 - Antonova, R. A1 - Petrova, E. A1 - Khoursine, R.A. A1 - Dimitrov, B. T1 - Prevention of HIV and sexually transmitted diseases in high risk social networks of young Roma (Gypsy) men in Bulgaria: Randomised controlled trial Y1 - 2006 DO - 10.1136/bmj.38992.478299.55 JF - British Medical Journal VL - 333 IS - 7578 SP - 1098 EP - -1101 ER -