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Keywords:
AmericasBiologyClinic ActivitiesColoradoCongenital AbnormalitiesCounselingCultural BackgroundDemographic FactorsDeveloped CountriesDiseasesEconomic FactorsEthnic GroupsEvaluationExaminations And DiagnosesFamily PlanningGeneticsHereditary DiseasesHigh Risk WomenNeonatal Diseases And AbnormalitiesNorth AmericaNorthern AmericaOrganization And AdministrationPopulationPopulation CharacteristicsProgram ActivitiesProgramsReproductionResearch MethodologyRetrospective StudiesSampling StudiesSocioeconomic FactorsSocioeconomic StatusStudiesSurveysUnited States