Mehta RH, Newby LK, Patel Y, Hoekstra JW, Miller CD, Chen AY, Lytle BL, Diercks DB, Summers RL, Brogan GX, Peacock WF, Pollack CV, Roe MT, Peterson ED, Ohman EM, Gibler WB. The impact of emergency department structure and care processes in delivering care for non-ST-segment elevation acute coronary syndromes. Am Heart J. 2006 Oct; 152(4):648-60.