@article{Speizer2004,
author = {Speizer, I.S. and Santelli, J.S. and Afable-Munsuz, A. and Kendall, C.},
title= {Measuring factors underlying intendedness of women's first and later pregnancies},
year = {2004},
doi = {10.1363/3619804},
journal = {Perspectives on Sexual and Reproductive Health},
volume = {36},
number = {5},
pages = {198--205},
}