Wall-Wieler, E., Roos, L. and Nickel, N. (2017) “Adolescent pregnancy termination and childbearing – the impact of an older sister’s pregnancy outcome: IJPDS (2017) Issue 1, Vol 1:031, Proceedings of the IPDLN Conference (August 2016)”, International Journal of Population Data Science, 1(1). doi: 10.23889/ijpds.v1i1.48.