@article{Udry1996,
author = {Udry, J.R. and Gaughan, M. and Schwingl, P.J. and van den Berg, G.J.},
title= {A medical record linkage analysis of abortion underreporting},
year = {1996},
doi = {10.2307/2135842},
journal = {Family Planning Perspectives},
volume = {28},
number = {5},
pages = {228‒231},
}