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Flow chart of ESTHER and DIANA study participants for cross-sectional and longitudinal study. DIANA, Diabetes mellitus: Neue Wege der Optimierung der allgemeinärztlichen Betreuung; D-ROM, Diacron’s reactive oxygen metabolites test; ESTHER, Epidemiologische Studie zu Chancen der Verhütung, Früherkennung und optimierten Therapie chronischer Erkrankungen in der älteren Bevölkerung.
