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Abstract
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Keywords:
AmenorrheaAsiaBiologyBreast FeedingContraceptionDemographic FactorsDeveloping CountriesDiseasesEuropeFamily PlanningFamily Planning, Behavioral MethodsFertilityHealthInfant NutritionLactation, ProlongedMenstruation DisordersNutritionPhilippinesPolicyPopulationPopulation DynamicsResearch MethodologySocial PolicySoutheastern Asia