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. 2012 Feb 22;13:28. doi: 10.1186/1471-2474-13-28

Figure 4.

Figure 4

a) Example of a cleaner who reported constant low to moderate LBP intensity (Black line) throughout the year and the simultaneous LTPA (Grey line), b) Example of a cleaner who reported a larger variation in LBP intensity (Black line) and the simultaneous LTPA (Grey line).