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Firestone, Allen R.; Scheurer, Philipp A.; Bürgin, Walter B. (1999). Patients' anticipation of pain and pain-related side effects, and their perception of pain as a result of orthodontic treatment with fixed appliances. European journal of orthodontics, 21(4), pp. 387-396. Oxford University Press 10.1093/ejo/21.4.387
Scheurer, Philipp A.; Firestone, Allen R.; Bürgin, Walter B. (1996). Perception of pain as a result of orthodontic treatment with fixed appliances. European journal of orthodontics, 18(4), pp. 349-357. Oxford University Press 10.1093/ejo/18.4.349
