AU - Paxton, Elizabeth W. AU - Furnes, Ove AU - Namba, Robert S. AU - Inacio, Maria C.S. AU - Fenstad, Anne M. AU - Havelin, Leif I. TI - Comparison of the Norwegian Knee Arthroplasty Register and a United States Arthroplasty Registry PT - JOUR DP - 2011 TA - The Journal of Bone & Joint Surgery PG - 20-30 VI - 93 IP - Supplement_3 AID - 10.2106/JBJS.K.01045 [doi] 4100 - http://dx.doi.org/10.2106/JBJS.K.01045 SO - The Journal of Bone & Joint Surgery December 21, 2011 93(Supplement_3):20