Endometrial HyperplasiaEndometrial NeoplasmsHyperplasiaEndometriumBiopsyProgestinsUterine DiseasesPolypsCarcinoma, EndometrioidUterine HemorrhageLevonorgestrelEndometritisHysterectomyIntrauterine Devices, MedicatedCurettageUterine NeoplasmsContraceptive Agents, FemaleDilatation and CurettageLynestrenolPrecancerous ConditionsBiopsy, NeedleProstatic HyperplasiaAnimals, ZooAdenocarcinomaUterusCarcinoma in SituImmunohistochemistryHysteroscopyRats, Mutant StrainsWorld Health OrganizationAdrenal Hyperplasia, CongenitalLeiomyoma