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. 2013 May 1;36(5):661–669. doi: 10.5665/sleep.2622

Figure 1.

Figure 1

PLMS index and RLS symptoms before and during intake of mirtazapine. (B1, B2: baseline nights; D1 to D6: drug nights; PLMS index: Number of periodic leg movements per hour of sleep; RLS: Restless legs syndrome symptoms (- no symptoms, + mild symptoms, ++ moderate symptoms, ? questionable symptoms); S: Subject.