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     Item: 
      Title: Rationale and population-based prospective cohort protocol for the disadvantaged populations at risk of decline in eGFR (CO-DEGREE)
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       Item: 
        Title: Abstract
       Item: 
        Title: Introduction
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        Title: Objectives
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         Item: 
          Title: Rationale for a cohort study of decline in eGFR
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           Item: 
            Title: A representative sample of those at risk
           Item: 
            Title: Handling reverse causation and recall bias
           Item: 
            Title: Measuring kidney function
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        Title: Core protocol
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          Title: Study design
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          Title: Population, sampling strategy and follow-up interval
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          Title: Questionnaires
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          Title: Clinical measurements
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          Title: Biosamples
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          Title: Data management and reporting
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          Title: Sample size and follow-up duration
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          Title: Ethics and dissemination
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          Title: Patient and public involvement
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          Title: Experience with the CO-DEGREE protocol in Nicaragua
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        Title: Discussion
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        Title: References
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