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. 2011 Mar 27;4:12. doi: 10.1186/1756-8722-4-12

Figure 4.

Figure 4

Short Form-12 (SF-12) Health Survey quality of life: (A) SF-12 physical component score (PCS) and (B) SF-12 mental component score (MCS). The graphs show unadjusted changes in average scores over time. The scores range from 0 - 100 with higher values representing improved health status. Numbers above each time point indicate the number of observations contributing to the average.