1. Student; Faculty of Medicine; Department of Histology; Iuliu Haţieganu University of Medicine and Pharmacy; Cluj-Napoca 400012 Romania
2. Department of Molecular Biology and Biotechnologies; Faculty of Biology and Geology, Babeş-Bolyai University; Cluj-Napoca 400006 Romania
3. Department of Veterinary Reproduction; Obstetrics; and Gynecology; Faculty of Veterinary Medicine; University of Agricultural Sciences and Veterinary Medicine; Cluj-Napoca 400372 Romania
4. Department of Cell and Molecular Biology; Faculty of Medicine; Iuliu Haţieganu University of Medicine and Pharmacy; Cluj-Napoca 400349 Romania
5. Department of Periodontology; Faculty of Dental Medicine; Iuliu Haţieganu University of Medicine and Pharmacy; Cluj-Napoca 400012 Romania
6. Department of Histology; Faculty of Medicine; Iuliu Haţieganu University of Medicine and Pharmacy; Cluj-Napoca 400349 Romania