Cell CycleCell Cycle ProteinsMenstrual CycleG1 PhaseS PhaseG2 PhaseMitosisInterphaseFollicular PhaseCell DivisionLuteal PhaseFlow CytometryDNA DamageApoptosisCyclinsCell Line, TumorCell ProliferationCell Cycle CheckpointsBromodeoxyuridineAphidicolinCell LinePremenstrual SyndromePhosphorylationCell SurvivalDNAHeLa CellsTumor Cells, CulturedHistonesDNA ReplicationRetinoblastoma ProteinTime FactorsCell NucleusProtein-Serine-Threonine KinasesCDC2 Protein KinaseHL-60 CellsCyclin BPropidiumDNA-Binding ProteinsCyclin D1Ataxia Telangiectasia Mutated ProteinsFertile PeriodHydroxyureaTumor Suppressor Protein p53Tumor Suppressor ProteinsMitoxantroneNuclear ProteinsCells, CulturedTopoisomerase II InhibitorsMicroscopy, FluorescenceAntineoplastic AgentsDNA RepairEstrous CycleDose-Response Relationship, RadiationKineticsAntineoplastic Agents, PhytogenicBlotting, WesternSignal TransductionProgesteroneModels, BiologicalSaccharomyces cerevisiaeCyclin-Dependent KinasesRadiation ToleranceTranscription FactorsRNA, MessengerDNA, NeoplasmMutationDrug Screening Assays, AntitumorImmunohistochemistryStaining and LabelingGene Expression RegulationCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Cell DifferentiationDose-Response Relationship, DrugG2 Phase Cell Cycle CheckpointsFibroblastsUltraviolet RaysCricetinaeGene ExpressionEnzyme InhibitorsMetestrusG0 PhaseG1 Phase Cell Cycle CheckpointsMicroscopy, ConfocalMolecular Sequence DataCyclin-Dependent Kinase 2Breast NeoplasmsCyclin EGenes, cdcCyclin AGonadal Steroid HormonesCyclin-Dependent Kinase 4EstrogensCDC2-CDC28 KinasesEstradiolcdc25 PhosphatasesMenstruationE2F Transcription FactorsAltitudeGene Expression Profiling