1. Giselle Corbie and Krista M. Perreira are with the Center for Health Equity Research, Department of Social Medicine, University of North Carolina, Chapel Hill. Giselle Corbie is also a guest editor of this special issue. Emily M. D’Agostino is with the Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC, and is also a guest editor of this special issue. Susan Knox, Lisa M. Wruck, and Michael Cohen-Wolkowiez are with the Duke Clinical Research Institute, Duke University...