[1] Hebrew Univ Jerusalem Hadassah Hosp & Med Sch, Dept Oral Med, Fac Dent, Jerusalem, Israel
[2] Aarhus Univ, Dept Clin Oral Physiol, Sch Dent, Aarhus C, Denmark
[3] Univ Med & Dent New Jersey, New Jersey Dent Sch, Dept Diagnost Sci, Newark, NJ 07103 USA
[4] NYU, Coll Dent, Dept Oral & Maxillofacial Pathol, New York, NY USA
[5] NYU, Sch Med, Dept Neurol, New York, NY USA
[6] Leeds Teaching Hosp, Leeds Dent Inst, Leeds, W Yorkshire, England
[7] Univ Fed Rio de Janeiro, Clementino Fraga Filho Univ, Special Oral Hlth Care Programme, Dept Pathol & Oral Diag,Fac Dent, BR-21941 Rio De Janeiro, Brazil
[8] Univ Illinois, Coll Dent, Dept Oral Med & Diagnost Sci, Chicago, IL USA
[9] Univ Florida, Coll Dent, Dept Oral Diagnost Sci, Gainesville, FL 32611 USA
[10] Univ Penn, Sch Dent Med, Philadelphia, PA 19104 USA
[11] Univ Penn, Med Ctr, Philadelphia, PA 19104 USA
[12] UCLH NHS Fdn Trust, Eastman Dent Hosp, Div Diagnost Surg & Med Sci, Facial Pain Unit, London, England