1 DDS, PhD, Associate Professor, Department of Implant Prosthetic Therapy, Faculty of Dentistry, Carol Davila University of Medicine and Pharmacy, 17-23 Calea Plevnei, Bucharest 010221, Romania.
2 MD, PhD, Professor, Department of Infectious Diseases I, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, National Institute for Infectious Diseases "Prof. Dr. Matei Balş", No. 1 Dr. Calistrat Grozovici street, Bucharest 021105, Romania.