1. Technical University of Cluj-Napoca, Department of Physics and Chemistry, Muncii Blvd., No. 103-105, 400641 Cluj-Napoca , Romania
2. Babeş-Bolyai University, Institute for Doctoral Studies, Kogălniceanu Street, No. 1, 400084 Cluj-Napoca , Romania
3. Iuliu Haţieganu University of Medicine and Pharmacy, Department of Medical Informatics and Biostatistics, Louis Pasteur Street, No. 6, 400349 Cluj-Napoca , Romania