TY - JOUR A1 - Plummer, M.L. A1 - Ross, D.A. A1 - Wight, D. A1 - Changalucha, J. A1 - Mshana, G. A1 - Wamoyi, J. A1 - Todd, J. A1 - Anemona, A. A1 - Mosha, A.A. A1 - Obasi, A.I.N. A1 - Hayes, R.J. T1 - “A bit more truthful”: the validity of adolescent sexual behaviour data collected in rural northern Tanzania using five methods Y1 - 2004 DO - 10.1136/sti.2004.011924 JF - Sexually Transmitted Infections VL - 80 IS - suppl 2 SP - ii49 EP - -ii56 ER -