@article{Habbema2009, author = {Habbema, J.D.F. and Eijkemans, M.J.C. and Nargund, G. and Beets, G. and Leridon, H. and Te Velde, E.R.}, title= {The effect of in vitro fertilization on birth rates in western countries}, year = {2009}, doi = {10.1093/humrep/dep004}, volume = {24}, number = {6}, pages = {1414--1419}, }