@Article{ SALAMANCA:321-339,

author = { ALBERTO SALAMANCA BALLESTEROS } ,

title = { Extended regimens of combined hormonal contraception to reduce symptoms related to withdrawal bleeding and the hormone-free interval: a systematic review of randomised and observational studies. },

journal = { European Journal of Contraception and Reproductive Health Care },

year = { 2014 },

volume = { 19 },

pages = { 321-339 },

doi = { http://www.tandfonline.com/doi/abs/10.3109/13625187.2014.927423?journalCode=iejc20 },

}