1. Master of Science Program in Orofacial Pain and Oral Medicine, Herman Ostrow School of Dentistry of USC, Los Angeles, California, USA.
2. Clinical Dentistry, Herman Ostrow School of Dentistry of USC, Los Angeles, California, USA.
3. Department of Geriatrics, Special Patients and Behavioral Science, Herman Ostrow School of Dentistry of University of Southern California, Los Angeles, California, USA.