Endometrial HyperplasiaEndometrial NeoplasmsHyperplasiaEndometriumCarcinomaProgestinsCarcinoma, EndometrioidUterine DiseasesPolypsUterine HemorrhageLevonorgestrelEndometritisHysterectomyUterine NeoplasmsIntrauterine Devices, MedicatedCarcinoma in SituCurettageCarcinoma, Squamous CellContraceptive Agents, FemaleAdenocarcinomaCarcinoma, HepatocellularDilatation and CurettagePrecancerous ConditionsLynestrenolImmunohistochemistryProstatic HyperplasiaAnimals, ZooUterusHysteroscopyTumor Markers, BiologicalRats, Mutant StrainsBiopsyCarcinoma, PapillaryWorld Health OrganizationImmunoenzyme TechniquesPTEN PhosphohydrolaseAdrenal Hyperplasia, CongenitalLeiomyomaPrognosis