Underserved populations with missing race ethnicity data differ significantly from those with structured race/ethnicity documentation. - Evan Sholle; Laura C. Pinheiro; Prakash Adekkanattu; Marcos Davila; Stephen B. Johnson; Jyotishman Pathak; Sanjai Sinha; Cassidie Li; Stasi A Lubansky; Monika M. Safford; Thomas R. Campion Jr. (J. Am. Medical Informatics Assoc., 2019)