Research Methodology / Reproduction / Developing Countries / Population / Demographic analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis
Research Methodology / Reproduction / Developing Countries / Population / Demographic analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis
Research Methodology / Reproduction / Developing Countries / Population / Demographic analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis
Research Methodology / Reproduction / Developing Countries / Population / Demographic analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis
Program Evaluation / Research Methodology / Primary Health Care / Reproduction / Developing Countries / Brazil / Population Dynamics / Health / Pregnancy / Population / Humans / Female / Questionnaires / Time Factors / Chi Square Distribution / Gestational Age / Cross Sectional Analysis / Cross Sectional Studies / Prenatal Care / Socioeconomic Factors / Brazil / Population Dynamics / Health / Pregnancy / Population / Humans / Female / Questionnaires / Time Factors / Chi Square Distribution / Gestational Age / Cross Sectional Analysis / Cross Sectional Studies / Prenatal Care / Socioeconomic Factors
Psychology / Research Methodology / Social Problems / Behavior / Developing Countries / Population / Behaviour / Measurement / Prevalence / Questionnaires / Public health systems and services research / Cross Sectional Analysis / Population / Behaviour / Measurement / Prevalence / Questionnaires / Public health systems and services research / Cross Sectional Analysis
Research Methodology / Reproduction / Developing Countries / Population / Demographic analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis / Menarche / Socioeconomic Status / Faculdade de Saude Publica / Cross Sectional Analysis
Marketing / Nutrition / Research Methodology / Primary Health Care / Developing Countries / Health / Measurement / Promotion / Prevalence / Public health systems and services research / Cross Sectional Analysis / Health / Measurement / Promotion / Prevalence / Public health systems and services research / Cross Sectional Analysis