Davis, L Oral contraceptives for pain associated with endometriosis. [electronic resource] - The Cochrane database of systematic reviews Jul 2007 - CD001019 p. digital Publication Type: Journal Article; Review; Systematic Review ISSN: 1469-493X Standard No.: 10.1002/14651858.CD001019.pub2 doi Subjects--Topical Terms: Contraceptives, Oral--therapeutic useEndometriosis--complicationsFemaleHumansPelvic Pain--drug therapy