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Sommer, Isolde, Ursula Griebler, Peter Mahlknecht, Kylie Thaler, Kathryn Bouskill, Gerald Gartlehner, und Shanti Mendis. "Socioeconomic Inequalities in Non-communicable Diseases and Their Risk Factors: An Overview of Systematic Reviews." BMC Public Health 2015.

Sommer, Isolde, et al. "Socioeconomic Inequalities in Non-communicable Diseases and Their Risk Factors: An Overview of Systematic Reviews." BMC Public Health 2015.