TY - World Journal of Emergency Medicine A1 - Robert E. Suter T1 - Emergency medicine in the United States:a systemic review Y1 - 2012-03-15 JF - World Journal of Emergency Medicine JO - World Journal of Emergency Medicine SP - 5 EP - 10 VL - 3 IS - 1 UR - http://wjem.com.cn N1 - 10.5847/wjem.j.issn.1920-8642.2012.01.001 ER -