Figure 3.

A Kaplan-Meier survival curve of patients stratified on the basis of being diagnosed as "free of disease" or not shows that patients with the diagnosis "free of disease" at any time after the operation had a better survival (p < 0.001).

Fottner et al. BMC Musculoskeletal Disorders 2010 11:145   doi:10.1186/1471-2474-11-145
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