Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research
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By using methods consistent with recent regulatory guidance on patient-reported outcomes as endpoints in clinical trials, we created a new version of the Functional Assessment of Cancer Therapy-Breast Cancer Symptom Index (FBSI), with emphasis on patient input during the development process. ⋯ Reflecting the priority symptoms of breast cancer patients and clinicians, the NFBSI-16 can be used to help evaluate the effectiveness of treatments for advanced breast cancer in clinical practice and research.