TY - JOUR A1 - Regan, A.K. A1 - Ball, S.J. A1 - Warren, J.L. A1 - Malacova, E. A1 - Padula, A. A1 - Marston, C. A1 - Pereira, G.A. T1 - Population-based matched-sibling analysis estimating the associations between first interpregnancy interval and birth outcomes Y1 - 2018 DO - 10.1093/aje/kwy188 VL - 188 IS - 1 ER -