OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - J Orofac Pain JT - Journal of Oral & Facial Pain and Headache IS - 2333-0376 (Electronic) IS - 2333-0384 (Print) IP - 2 VI - 27 PST - ppublish DP - 2013 PG - 183-183 LA - en TI - Letter to the Editor FAU - Selms, Maurits K. A. van AU - Selms M FAU - Visscher, Corine M. AU - Visscher C FAU - Naeije, Machiel AU - Naeije M FAU - Lobbezoo, Frank AU - Lobbezoo F CN - AB - AID - 851140