@misc{curtis_2018_1258855, author = {Curtis, Kathryn M. and Martins, Summer L.}, title = {{Progestogen-only contraception and bone mineral density: a systematic review}}, month = jun, year = 2018, publisher = {Zenodo}, doi = {10.1016/j.contraception.2005.12.010}, url = {{https://doi.org/10.1016/j.contraception.2005.12.01 0}}, }