TY - JOUR A1 - Wesselink, A.K. A1 - Rothman, K.J. A1 - Hatch, E.E. A1 - Mikkelsen, E.M. A1 - Sørensen, H.T. A1 - Wise, L.A. T1 - Age and fecundability in a North American preconception cohort study Y1 - 2017 DO - 10.1016/j.ajog.2017.09.002 VL - 217 IS - 6 ER -