M. S. Gui, M. J. Pimentel, M. C. da S. Gama, G. M. B. Ambrosano, and C. M. R. Barbosa, “Quality of life in temporomandibular disorder patients with localized and widespread pain”, Braz. J. Oral Sci., vol. 13, no. 3, pp. 193–197, Dec. 2010.