1. Department of Oral Diagnostic Sciences; Faculty of Dentistry; King Abdulaziz University; Jeddah Saudi Arabia
2. Department of Oncology and Diagnostic Sciences; University of Maryland Dental School; Baltimore MD USA
3. Greenebaum Cancer Centre; Baltimore MD USA
4. Molecular Physiology and Therapeutics branch; Sjögren's Syndrome and Salivary Gland Dysfunction Unit; National Institute of Dental and Craniofacial Research; National Institutes of Health; Bethesda MD USA
5. Department of Laboratory Medicine and Advanced Biotechnologies; IRCCS-ISMETT (Istituto Mediterraneo peri Trapiantie Terapie ad alta specializzazione); Palermo Italy