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Eggensperger, Nicole M; Lieger, Olivier; Thüer, Urs; Iizuka, Tateyuki (2007). Soft tissue profile changes following mandibular advancement and setback surgery an average of 12 years postoperatively. Journal of oral and maxillofacial surgery, 65(11), pp. 2301-2310. Maryland Heights, Mo.: Elsevier 10.1016/j.joms.2007.06.644