1. “Grigore T. Popa” U. M. Ph,Faculty of Dental Medicine,Dept. of Surgical,Iasi,Romania
2. “Grigore T. Popa” U. M. Ph.,Faculty of Dental Medicine,Dept. of Management and Public Health Dentistry,Iasi,Romania
3. “Grigore T. Popa” U. M. Ph.,Faculty of Medicine,Dept. of Medical Informatics and Biostatistics,Iasi,Romania