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. 2021 Feb 1;18(3):1325. doi: 10.3390/ijerph18031325

Figure 1.

Figure 1

Time series plot Locally Weighted Scatter Plot Smoothing (LOESS) of relative search volumes (RSV) for the search terms “mal di schiena” (A), “dolore alla schiena” (B), “dolore lombare” (C), “lombalgia” (D) from January 2004 to April 2020.