The sponsor statement should read: Two sponsors were responsible for the work presented in this manuscript. The sponsor for the initial development of the QOL-B study was Behavioral Health Systems Research, which is the sole proprietorship of Dr Alexandra L. Quittner. She was awarded an investigator-initiated grant to perform all of the phases of instrument development leading up to the open-label responsivity phase. Dr Quittner was responsible for the design, implementation, conduct and analysis of the open-ended interviews and cognitive testing phases of the study. In addition, Gilead Sciences was the sponsor for the Phase 2 open-label treatment study which yielded the initial psychometric properties on the instrument. Content analysis of the open-ended interviews and transcription and analysis of the cognitive testing interviews were performed by Dr Quittner. Statistical analysis of the open label clinical study was performed by Gilead Sciences. Gilead paid a medical writer to assist with preparation of the manuscript and four of the authors who reviewed and revised the manuscript were either current or former employees of Gilead Sciences. Dr Quittner was responsible for organizing and editing the manuscript and collating feedback from the other authors to produce the final draft of the manuscript.