Construct Validity of the Work Productivity and Activity Impairment Questionnaire across Informal Caregivers of Chronically Ill Older Patients
| Autor: | Giovannetti, Erin R., Wolff, Jennifer L., Frick, Kevin D., Boult, Chad |
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| Zdroj: | In Value in Health 2009 12(6):1011-1017 |
| Databáze: | ScienceDirect |
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