Evaluation of self-reported ethnicity in a case-control population: the stroke prevention in young women study.
Bmc Research Notes
Mez, Jesse B JB; Cole, John W JW; Howard, Timothy D TD; Macclellan, Leah R LR; Stine, Oscar C OC; O'Connell, Jeffery R JR; Wozniak, Marcella A MA; Stern, Barney J BJ; Sorkin, John D JD; Mitchell, Braxton D BD; Kittner, Steven J SJ