AU - Kim, Young-Hoo TI - Comparison of Polyethylene Wear Associated with Cobalt-Chromium and Zirconia Heads After Total Hip ReplacementA Prospective, Randomized Study PT - JOUR DP - 2005 TA - The Journal of Bone & Joint Surgery PG - 1769-1776 VI - 87 IP - 8 AID - 10.2106/JBJS.D.02572 [doi] 4100 - http://dx.doi.org/10.2106/JBJS.D.02572 SO - The Journal of Bone & Joint Surgery August 1, 2005 87(8):1769