Anabolic AgentsOsteoporosisZeranolHexestrolTrenbolone AcetateOsteoporosis, PostmenopausalBone Density Conservation AgentsTeriparatideBone DensityOxandroloneBone and BonesBone RemodelingOsteoblastsParathyroid HormoneOsteogenesisDiethylstilbestrolOsteoporotic FracturesFractures, BoneDiphosphonatesAbsorptiometry, PhotonFractures, SpontaneousAlendronateBone Diseases, MetabolicSpinal FracturesEtidronic AcidBone ResorptionFemur NeckLumbar VertebraeHip FracturesRaloxifeneFemurOsteoclastsCalcaneusCalcium, DietaryVitamin DSelective Estrogen Receptor ModulatorsGlucocorticoidsSpineCalcitoninRisk FactorsOsteocalcinHipRANK LigandOvariectomyEstrogen Replacement Therapy