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. 2016 Nov 3;158(2):261–272. doi: 10.1097/j.pain.0000000000000753

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© 2016 International Association for the Study of Pain

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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Figure 3. — Cluster separation projected onto 2-dimensional space. Scatter plot of the 2 quantitative sensory testing (QST)-parameters that gave the best cluster separation: mechanical pain sensitivity (MPS) plotted against warm detection threshold (WDT). Blue dots: cluster 1 “sensory loss” (n = 381 patients); red dots: cluster 2 “thermal hyperalgesia” (n = 302 patients); yellow dots: cluster 3 “mechanical hyperalgesia” (n = 219 patients). Circles indicate centroids of each cluster.