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Article History

First Online: 1 March 2019

Compliance with Ethical Standards

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: The full dataset is available from Roche Products Ltd. on request; please contact medinfo.uk@roche.com.

: IT was an employee of Roche Products Ltd. when the work was carried out; he is now an employee of Genentech Inc. BM was an employee of, and currently holds an honorary contract with, ScHARR (University of Sheffield); he is now an employee of the Centre for Health Economics Research and Evaluation (University of Technology Sydney). The authors thank Jennifer Rowell (Roche) and Stephen Bradley (Roche) for their aid and input during the editing stages of the manuscript before submission for publication. JB developed the SF-6D. JB and BM are EuroQol Group members. MF, CM, and SW have no conflicts of interest that are directly relevant to the content of this article.

: This study (NCT01634542) was sponsored by Roche Products Ltd. The writing of this manuscript was part-funded by Roche Products Ltd and the National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care Yorkshire and Humber (NIHR CLAHRC YH), ExternalRef removed. The views expressed in this publication are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health. All authors were involved in the conception and design, analysis, and interpretation of the data; the drafting of the paper; revising it critically for intellectual content; and the final approval of the version to be published. All authors agree to be accountable for all aspects of the work.