1. State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases; Department of Oral Anatomy and Physiology and TMD; School of Stomatology; The Fourth Military Medical University; Xi ‘an China
2. Specialist of Stomatognathic Physiology; Division of Prosthodontics; Department of Biological and Materials Sciences; University of Michigan; Ann Arbor MI USA