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Haagsma, Juanita A., Ed F. van Beeck, Suzanne Polinder, Hidde Toet, Martien Panneman, and Gouke J. Bonsel. The Effect of Comorbidity On Health-related Quality of Life for Injury Patients in the First Year Following Injury: Comparison of Three Comorbidity Adjustment Approaches. BioMed Central, 2011.

Haagsma, Juanita A., et al. The Effect of Comorbidity On Health-related Quality of Life for Injury Patients in the First Year Following Injury: Comparison of Three Comorbidity Adjustment Approaches. BioMed Central, 2011.