1. Center for Oral/Head & Neck Oncology Research; School of Dentistry; University of California at Los Angeles; Los Angeles CA USA
2. Faculty of Biomedical Sciences; Adult's Dentistry Department; Universidad Europea de Madrid; Madrid Spain
3. Faculty of Mechanical Engineering; Department of Physics; Kazimierz Pulaski University of Technology and Humanities in Radom; Radom Poland
4. Bioscience Research Center; College of Dentistry; University of Tennessee Health Science Center; Memphis TN USA