@article{Adler1992,
author = {Adler, N.E. },
title= {Unwanted pregnancy and abortion: Definitional and research issues},
year = {1992},
doi = {10.1111/j.1540-4560.1992.tb00896.x},
journal = {Journal of Social Issues },
volume = {48},
number = {3},
pages = {19--35},
}