TY - JOUR T1 - Intrauterine contraceptive devices can be left in longer JF - Drug and Therapeutics Bulletin JO - Drug Ther Bull SP - 5 LP - 6 DO - 10.1136/dtb.28.2.5 VL - 28 IS - 2 A2 - , Y1 - 1990/01/22 UR - http://dtb.bmj.com/content/28/2/5.abstract N2 - Both the National Association of Family Planning Doctors and the Family Planning Association are considering a recommendation that copper-carrying intrauterine contraceptive devices (IUDs) need not generally be changed more often than every 5 years. ER -