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Abstract
No abstract available in PubMed .
Keywords:
Basal Body Temperature MethodBiologyCervical Mucus MethodCervical Mucus--analysisCervixCoitus InterruptusEconomic FactorsFamily PlanningFamily Planning, Behavioral MethodsGenitaliaGenitalia, FemaleLactation, ProlongedNatural Family PlanningPhysiologySocioeconomic FactorsUrogenital SystemUterus