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Figure 2: Verbal analog scores for pain at rest (a) and with cough (b) on a standard 0 to 10 scale over the first 24 h after surgery. Values are a mean ± standard deviation. (McDonald et al. 2005)[16]

Figure 2: Verbal analog scores for pain at rest (a) and with cough (b) on a standard 0 to 10 scale over the first 24 h after surgery. Values are a mean ± standard deviation. (McDonald <i>et al</i>. 2005)<sup>[16]</sup>