"Further research is needed to ensure that chronic hepatitis C clinical trials evaluate concepts that are important to patients and include measures that have evidence supporting content validity, reliability, construct validity, and responsiveness."
Review of patient-reported outcome measures in chronic hepatitis C
L Kleinman, S Mannix, Y Yuan, S Kummer, G L'Italien, D Revicki
Health and Quality of Life Outcomes, 2012, 10:92
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