title: [Comparative study on the clinical effects and endometrial findings of IUD].
mesh_terms: D001695:Biology; D003267:Contraception; D003710:Demography; D004194:Disease; D004717:Endometrium; D005193:Family Planning Services; D005835:Genitalia; D005836:Genitalia, Female; D007434:Intrauterine Devices; D007435:Intrauterine Devices, Copper; D010827:Physiology; D011153:Population; D011157:Population Dynamics; D012106:Research; D012816:Signs and Symptoms; D013997:Time Factors; D014566:Urogenital System; D014599:Uterus
keywords: Biology; Comparative Studies; Contraception; Contraception Termination; Contraceptive Methods; Demographic Factors; Diseases; Endometrial Effects; Endometrium; Family Planning; Genitalia; Genitalia, Female; Iud; Iud, Copper Releasing; Iud, Unmedicated; Physiology; Population; Population Dynamics; Research Methodology; Signs And Symptoms; Studies; Time Factors; Urogenital System; Uterus