[1] Univ Naples Federico II, Sch Orthodont, Dept Neurosci Reprod Sci & Oral Sci, Naples, Italy
[2] Malmo Univ, Fac Odontol, Dept Orofacial Pain & Jaw Funct, Malmo, Sweden
[3] FTV Ostergotland, Ctr Oral Rehabil, Norrkoping, Sweden
[4] Scandinavian Ctr Orofacial Neurosci, Norrkoping, Sweden
[5] Minist Hlth, East Jeddah Hosp, Jeddah, Saudi Arabia
[6] Karolinska Inst, Dept Dent Med, Huddinge, Sweden
[7] Univ Sao Paulo, Bauru Sch Dent, Dept Prosthodont & Periodontol, Bauru, SP, Brazil
[8] Univ Sao Paulo, Bauru Orofacial Pain Grp, Bauru, SP, Brazil
[9] Newcastle Univ, Sch Dent Sci, Newcastle Upon Tyne, Tyne & Wear, England
[10] Newcastle Upon Tyne Hosp NHS Fdn Trust, Newcastle Upon Tyne, Tyne & Wear, England
[11] Laval Univ, Fac Dent Med, Quebec City, PQ, Canada
[12] Univ Leipzig, Clin Pediat Dent, Leipzig, Germany
[13] Radboud Univ Nijmegen Med Ctr, Coll Dent Sci, Dept Oral Funct & Prosthet Dent, Nijmegen, Netherlands
[14] Univ Washington, Dept Epidemiol, Seattle, WA 98195 USA
[15] Nihon Univ, Sch Dent Matsudo, Div Oral Funct & Rehabil, Matsudo, Chiba, Japan
[16] Univ Amsterdam, Dept Orofacial Pain & Dysfunct, Acad Ctr Dent Amsterdam ACTA, Amsterdam, Netherlands
[17] Vrije Univ Amsterdam, Amsterdam, Netherlands
[18] SUNY Buffalo, Dept Oral Diagnost Sci, Buffalo, NY USA
[19] Univ Sydney, Fac Med & Hlth, Sydney, NSW, Australia
[20] Univ CES, CES LPH Res Grp, Medellin, Colombia
[21] Univ Coimbra, Inst Occlus & Orofacial Pain, Fac Med, Coimbra, Portugal
[22] Sch Dent & Oral Hlth, Sect Orofacial Pain & Jaw Funct, Aarhus, Denmark
[23] Kalmar Cty Hosp, Dept Stomatognath Physiol, Kalmar, Sweden