Øland J, Jensen J, Melsen B, Elklit A. Are personality patterns and clinical syndromes associated with patients’ motives and perceived outcome of orthognathic surgery? Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons. 2010 dec. 1;68(12):3007-14. doi: 10.1016/j.joms.2010.07.077