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Willadsen, Tora Grauers, Anna Bebe, Rasmus Køster-Rasmussen, Dorte Ejg Jarbøl, Ann Dorrit Guassora, Frans Boch Waldorff, Susanne Reventlow, och Niels de Fine Olivarius. "The Role of Diseases, Risk Factors and Symptoms in the Definition of Multimorbidity – a Systematic Review." Scand J Prim Health Care 2016.

Willadsen, Tora Grauers, et al. "The Role of Diseases, Risk Factors and Symptoms in the Definition of Multimorbidity – a Systematic Review." Scand J Prim Health Care 2016.