TY - JOUR A1 - Jaspan, H.B. A1 - Flisher, A.J. A1 - Myer, L. A1 - Mathews, C. A1 - Seebregts, C. A1 - Berwick, J.R. A1 - Wood, R. A1 - Bekker, L.-G. T1 - Brief report: Methods for collecting sexual behaviour information from South African adolescents-a comparison of paper versus personal digital assistant questionnaires Y1 - 2007 DO - 10.1016/j.adolescence.2006.11.002 JF - Journal of Adolescence VL - 30 IS - 2 SP - 353 EP - -359 ER -