@article {Bjarnadottir:November 2001:0306-5456:1174,
	author = "Bjarnadottir R.I.",
	author = "Gottfredsdottir H.",
	author = "Sigurdardottir K.",
	author = "Geirsson R.T.",
	author = "Dieben T.O.M.",
	title = "Comparative study of the effects of a progestogen-only pill containing desogestrel and an intrauterine contraceptive device in lactating women",
	journal = "British Journal of Obstetrics and Gynaecology",
	volume = "108",
	year = "November 2001",
	abstract = "",
	pages = "1174-1180(7)",
	url = "http://www.ingentaconnect.com/content/els/03065456/2001/00000108/00000011/art00239"
	doi = "doi:10.1016/S0306-5456(01)00239-X"
}