@article{Westhoff1998b,
author = {Westhoff, C. and Truman, C. and Kalmuss, D. and Cushman, L. and Rulin, M. and Heartwell, S. and Davidson, A.},
title= {Depressive symptoms and Norplant contraceptive implants},
year = {1998b},
doi = {10.1016/S0010-7824(98)00022-5},
journal = {Contraception},
volume = {57},
number = {4},
pages = {241--245},
}