bibliographicCitation |
Schlaff WD, Lynch AM, Hughes HD, Cedars MI, Smith DL. Manipulation of the pill-free interval in oral contraceptive pill users: the effect on follicular suppression. American Journal of Obstetrics and Gynecology. 2004 Apr;190(4):943–9. doi: 10.1016/j.ajog.2004.02.012. |