Recent trend in preference of contraceptive methods--pills down, diaphragm on rise.
D002140:California; D003270:Contraceptive Agents; D003274:Contraceptive Devices, Female / Q000706:statistics & numerical data*; D003276:Contraceptives, Oral; D004363:Drug Utilization; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000706:statistics & numerical data; D014622:Vaginal Creams, Foams, and Jellies
D003270:Contraceptive Agents; D003276:Contraceptives, Oral; D014622:Vaginal Creams, Foams, and Jellies