Endometrial HyperplasiaEndometrial NeoplasmsHyperplasiaEndometriumProgestinsUterine DiseasesPolypsCarcinoma, EndometrioidUterine HemorrhageLevonorgestrelEndometritisHysterectomyIntrauterine Devices, MedicatedUterine NeoplasmsCurettageContraceptive Agents, FemaleDilatation and CurettageLynestrenolPrecancerous ConditionsAnimals, ZooProstatic HyperplasiaAdenocarcinomaUterusCarcinoma in SituImmunohistochemistryHysteroscopyRats, Mutant StrainsBiopsyWorld Health OrganizationAdrenal Hyperplasia, CongenitalLeiomyoma