TY - JOUR A1 - Bjørngaard, J.H. A1 - Bjerkeset, O. A1 - Vatten, L. A1 - Janszky, I. A1 - Gunnell, D. A1 - Romundstad, P. T1 - Maternal age at child birth, birth order, and suicide at a young age: A sibling comparison Y1 - 2013 DO - 10.1093/aje/kwt014 VL - 177 IS - 7 ER -