TY - JOUR A1 - Rothman, K.J. A1 - Wise, L.A. A1 - Sørensen, H.T. A1 - Riis, A.H. A1 - Mikkelsen, E.M. A1 - Hatch, E.E. T1 - Volitional determinants and age-related decline in fecundability: a general population prospective cohort study in Denmark Y1 - 2013 DO - 10.1016/j.fertnstert.2013.02.040 VL - 99 IS - 7 ER -