@article{article13c5e38e, title = {A pilot study of levonorgestrel concentrations and bleeding patterns in women with epilepsy using a levonorgestrel IUD and treated with antiepileptic drugs}, author = {Vieira, Carolina Sales and Pack, Alison and Roberts, Kevin and Davis, Anne R.}, year = {2019}, doi = {10.1016/j.contraception.2018.11.018}, journal = {Contraception} }