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 - 5 VI - 34 PST - ppublish DP - 2020 PG - 3-5 LA - en TI - At the Crossroads of Chronic Overlapping Pain Conditions and Research Diagnostic Criteria: Which Direction to Take? FAU - LeResche, Linda AU - LeResche L FAU - Korff, Michael Von AU - Korff M CN - AB - AID - 851566