Référence: Intra-uterine insemination versus timed intercourse or expectant management for cervical hostility in subfertile couples
Helmerhorst, Frans M; Van Vliet, Huib AAM; Gornas, Twina; Finken, M J; Grimes, David A Intra-uterine insemination versus timed intercourse or expectant management for cervical hostility in subfertile couples. Cochrane Database of Systematic Reviews 2005: DOI: 10.1002/14651858.CD002809.pub2