AU - Wright, James G. TI - A Practical Guide to Assigning Levels of Evidence PT - JOUR DP - 2007 TA - The Journal of Bone & Joint Surgery PG - 1128-1130 VI - 89 IP - 5 AID - 10.2106/JBJS.F.01380 [doi] 4100 - http://dx.doi.org/10.2106/JBJS.F.01380 SO - The Journal of Bone & Joint Surgery May 1, 2007 89(5):1128