TY - JOUR A1 - Leridon, H. A1 - Slama, R. T1 - The impact of a decline in fecundity and of pregnancy postponement on final number of children and demand for assisted reproduction technology Y1 - 2008 DO - 10.1093/humrep/den106 JF - Human Reproduction VL - 23 IS - 6 ER -