
Content Validity—Establishing and Reporting the Evidence in Newly Developed Patient-Reported Outcomes (PRO) Instruments for Medical Product Evaluation: ISPOR PRO Good Research Practices Task Force Report: Part 1—Eliciting Concepts for a New PRO Instrument
Keywords: سازمان غذا و دارو; content validity; European Medicines Agency; Food and Drug Administration; patient reported outcomes; quality of life