@misc{indiciaec26d4bb6eb60, title = {Contraceptive development for developing countries: unmet needs.}, author = {G W Perkin and G W Duncan and R T Mahoney and R H Smith}, year = {1976}, doi = {10.1098/rspb.1976.0108}, url = {https://pubmed.ncbi.nlm.nih.gov/13379/}, note = {Source identifier: 13379} }