Challenges in enrollment of minority, pediatric, and geriatric patients in emergency and acute care clinical research - Glickman, SW; Anstrom, KJ; Lin, L; Chandra, A; Laskowitz, DT; Woods, CW; Freeman, DH; Kraft, M; Beskow, LM; Weinfurt, KP; Schulman, KA; Cairns, CB (Ann Emerg Med, 2008)
e3.