title: New hip and knee replacements. Conclusions from knee and hip registry data miss the point.
authors.forename: Justin P
authors.initials: JP
authors.lastname: Cobb
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000706:statistics & numerical data*; D019645:Arthroplasty, Replacement, Knee / Q000706:statistics & numerical data*; D006801:Humans; D012086:Reoperation