@article{Westhoff1998a,
author = {Westhoff, C. and Truman, C. and Kalmuss, D. and Cushman, L. and Davidson, A. and Rulin, M. and Heartwell, S.},
title= {Depressive symptoms and Depo-Provera},
year = {1998a},
doi = {10.1016/S0010-7824(98)00024-9},
journal = {Contraception},
volume = {57},
number = {4},
pages = {237--240},
}