Sabrina Epstein1, Kara Ayers2, Bonnielin K Swenor3. 1. Krieger School of Arts and Sciences, Baltimore, MD, USA; The Johns Hopkins Disability Health Research Center, Johns Hopkins University, Baltimore, MD 21287, USA. 2. Center for Dignity in Healthcare for People with Disabilities, Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA. 3. The Johns Hopkins Disability Health Research Center, Johns Hopkins University, Baltimore, MD 21287, USA; Department of Epidemiology, Johns Hopkins University, Baltimore, MD 21287, USA; The Wilmer Eye Institute, Johns Hopkins University, Baltimore, MD 21287, USA. Electronic address: bswenor@jhmi.edu.