@misc{indiciae4bfca2440660, title = {Surface changes in intrauterine contraceptive devices after variable use.}, author = {L Keith and R Bailey and G S Berger and M Method}, year = {1985}, doi = {10.1016/s0002-9378(85)80180-0}, url = {https://pubmed.ncbi.nlm.nih.gov/3993713/}, note = {Source identifier: 3993713} }