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Summary
No abstract available in PubMed .
Keywords:
Age FactorsAmenorrheaBiologyBlood Coagulation EffectsClinical ResearchContraceptionContraceptive Agents, Estrogen--therapeutic useContraceptive Agents, Female--therapeutic useContraceptive Agents, Progestin--therapeutic useContraceptive Agents--therapeutic useDiseasesEndocrine SystemEstrogens--therapeutic useFamily PlanningHematological EffectsHemic SystemHormonesMedroxyprogesterone Acetate--therapeutic useMenorrhagiaMenstruation DisordersMestranol--therapeutic useNorethynodrel--therapeutic useOral ContraceptivesOral Contraceptives, CombinedParityPhysiologyPlatelet AggregationResearch Methodology