TY - JOUR AU - Gage, B E; McIlvain, N M; Collins, C L; Fields, S K; Comstock, R D TI - Epidemiology of 6.6 million knee injuries presenting to United States emergency departments from 1999 through 2008 JO - Acad Emerg Med IS - 04 VL - 19 PY - 2012 DO - 10.1111/j.1553-2712.2012.01315.x L3 - PubMed-ID: 22506941 SP - 378 EP - 385 ER -