TY - RPRT A1 - McCrory, C. A1 - Williams, J. A1 - Murray, A. A1 - Quail, A. A1 - Thornton, M. T1 - Growing up in Ireland. National longitudinal study of children: Infant cohort. Design, instrumentation and procedures for the infant cohort at wave two (3 years) Y1 - 2013 PB - Department of Children and Youth Affairs CY - Dublin IS - Technical Report Number 3 ER -