TY - JOUR A1 - Williams, T. A1 - Connolly, J. A1 - Cribbie, R. T1 - Light and heavy heterosexual activities of young canadian adolescents: Normative patterns and differential predictors Y1 - 2008 DO - 10.1111/j.1532-7795.2008.00554.x VL - 18 IS - 1 ER -