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[Do oral contraceptives increase the risk of developing cholelithiasis?]
Summary
No abstract available in PubMed .
Keywords:
BiologyCase Control StudiesCholesterolContraceptionContraceptive MethodsContraceptive UsageCzechoslovakiaDemographic FactorsDeveloped CountriesEastern EuropeEuropeFamily PlanningIudLipidsLongterm EffectsPhysiologyPopulationPopulation DynamicsResearch MethodologyRisk FactorsStudiesTime Factors