HDQLIFE was developed through studies supported by the National Institutes of Health (NIH), National Institute of Neurological Disorders and Stroke (R01NS077946 and R03NS065194 ). Data collection was also supported by the National Center for Advancing Translational Sciences (UL1TR000433), the National Institute of Neurological Disorders and Stroke (R01NS040068), the CHDI Foundation (award to the University of Iowa); phenotyping for a portion of the sample was also supported by the NIH (award to the University of Iowa). We’d also like to thank the HDQLIFE study site coordinators and research assistants, the study participants, the National Research Roster for Huntington Disease Patients and Families, the Huntington’s Disease Society of America, and the Huntington Study Group.