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[Side effects of using modern contraceptive methods for a period of 9192 cycles]
Abstract
No abstract available in PubMed .
Keywords:
BehaviorBulgariaClinical ResearchContraceptionContraceptive AgentsContraceptive Agents, FemaleContraceptive Methods--side effectsDeveloped CountriesDiseasesEastern EuropeEuropeFamily PlanningIud--side effectsMenstruation DisordersOral Contraceptives--side effectsPsychological FactorsResearch MethodologySex Behavior