title: [A comparative study of three types of IUD].
authors.forename: K R
authors.initials: KR
authors.lastname: Lai
authors.forename: Q B
authors.initials: QB
authors.lastname: Chen
mesh_terms: D001208:Asia; D055598:Chemical Phenomena; D002621:Chemistry; D002681:China; D003267:Contraception; D003268:Contraception Behavior; D003274:Contraceptive Devices, Female; D003906:Developing Countries; D004194:Disease; D005193:Family Planning Services; D005202:Asia, Eastern; D006470:Hemorrhage; D007287:Inorganic Chemicals; D007434:Intrauterine Devices; D007435:Intrauterine Devices, Copper; D008670:Metals; D011446:Prospective Studies; D012106:Research; D012816:Signs and Symptoms; D013193:Stainless Steel
chemical_list: D007287:Inorganic Chemicals; D008670:Metals; D013193:Stainless Steel
keywords: Asia; Bleeding; China; Comparative Studies; Contraception; Contraception Failure; Contraception Termination; Contraceptive Effectiveness; Contraceptive Methods--side effects; Contraceptive Usage; Developing Countries; Diseases; Eastern Asia; Family Planning; Ingredients And Chemicals; Inorganic Chemicals; Iud, Copper Releasing--side effects; Iud--side effects; Metals; Prospective Studies; Research Methodology; Signs And Symptoms; Stainless Steel; Studies; Vaginal Rings--side effects